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This spec has been registered in the following open repositories: [<caption>Open Repositories where BCI-O can be accessed</caption> [ [ <th style=\"width: 25%; text-align: center; Repository <th style=\"width: 50%; text-align: center; Entry <th style=\"width: 25%; text-align: center; Description ] ] [ [ [w3id.org github] [https://github.com/perma-id/w3id.org/tree/master/BCI-ontology] [ Permanent URI for the WWW] ] [ [Linked Open Vocabularies] [http://lov.okfn.org/dataset/lov/vocabs/bci] [ LOD community] ] [ [BioPortal] [http://bioportal.bioontology.org/ontologies/BCI-O] [ BioMedical community] ] ] ] Some early BCI-O applications are presented at <a class=\"other the end of the spec.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"0.9.6","has_ontology_language":"OWL","nb_classes":98,"nb_individuals":1,"nb_properties":178,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BCIO","name":"Behaviour Change Intervention Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BCIO/1/bcio.owl","domain":null,"description":"The Behaviour Change Intervention Ontology (BCIO) is an ontology for all aspects of human behaviour change interventions and their evaluation. 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Additional modules will be added soon.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":2524,"nb_individuals":0,"nb_properties":108,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BCO","name":"The Biological Collections Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BCO/1/bco.owl","domain":null,"description":"The BCO supports the interoperability of biodiversity and biodiversity related data, including data on museum collections, environmental/metagenomic samples, and ecological surveys. A key aspect of the BCO is distinguishing among material samples (i.e. specimens), observing processes, and data about either of those entities.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"https://github.com/BiodiversityOntologies/bco","version":"2021-11-14","has_ontology_language":"OWL","nb_classes":254,"nb_individuals":64,"nb_properties":477,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BCS8","name":"AJCC Cancer Staging Ontology - 8th Edition","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BCS8/1/bcs8.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"version 0.1","has_ontology_language":"OWL","nb_classes":31,"nb_individuals":0,"nb_properties":6,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BCSR-ONTO","name":"Breast cancer recommendation","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BCSR-ONTO/1/bcsr-onto.owl","domain":null,"description":"This ontology representes the knowledge about existing recommendations of different guidelines elaborated to prevent breast cancer. Guidelines focus on women with intermediate or high risk of contracting breas cancer.\nThe ontology also models results of applying different models to determine iof a given woman has an intermediate or a high risk of contracting the disease. Ie also represents risk factors that models consider to classify a woman into a risk level.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":34,"nb_individuals":115,"nb_properties":80,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BCTEO","name":"BCTEO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BCTEO/1/bcteo.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":253,"nb_individuals":0,"nb_properties":14,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BCTT","name":"BCTT","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BCTT/1/bctt.owl","domain":null,"description":"The Behaviour Change Technique Taxonomy","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":110,"nb_individuals":0,"nb_properties":2,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BDO","name":"Bone Dysplasia Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BDO/1/bdo.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":3668,"nb_individuals":101,"nb_properties":45,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BE","name":"BE","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BE/1/be.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":442,"nb_individuals":0,"nb_properties":9,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BERO","name":"Biological and Environmental Research Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BERO/1/bero.owl","domain":null,"description":"None","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"2022-12-23","has_ontology_language":"OWL","nb_classes":392307,"nb_individuals":299,"nb_properties":1297,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BERVO","name":"BERVO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BERVO/1/bervo.owl","domain":null,"description":"\"An ontology of variables for earth system simulation, partially derived from the EcoSIM framework.\"","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"2025-12-22","has_ontology_language":"OWL","nb_classes":2306,"nb_individuals":1630,"nb_properties":19,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BFO","name":"Basic Formal Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BFO/1/bfo.owl","domain":null,"description":"Please see the project site https://github.com/BFO-ontology/BFO, the bfo2 owl discussion group http://groups.google.com/group/bfo-owl-devel, the bfo2 discussion group http://groups.google.com/group/bfo-devel, the tracking google doc http://goo.gl/IlrEE, and the current version of the bfo2 reference http://purl.obolibrary.org/obo/bfo/dev/bfo2-reference.docx. This ontology is generated from a specification at https://github.com/BFO-ontology/BFO/tree/master/src/ontology/owl-group/specification/ and with the code that generates the OWL version in https://github.com/BFO-ontology/BFO/tree/master/src/tools/. A very early version of BFO version 2 in CLIF is at http://purl.obolibrary.org/obo/bfo/dev/bfo.clif.","documentation":"https://github.com/BFO-ontology/BFO/tree/master/src/tools/","publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"https://github.com/BFO-ontology/BFO","version":null,"has_ontology_language":"OWL","nb_classes":36,"nb_individuals":0,"nb_properties":24,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BHN","name":"BHN","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BHN/1/bhn.owl","domain":null,"description":"Biologie Hors Nomenclature","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":2534,"nb_individuals":0,"nb_properties":7,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BHO","name":"BHO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BHO/1/bho.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":544,"nb_individuals":0,"nb_properties":42,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BIBLIOTEK-O","name":"bibliotek-o: a BIBFRAME Ontology Extension","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BIBLIOTEK-O/1/bibliotek-o.owl","domain":null,"description":"The bibliotek-o ontology extension defines additions and modifications to BIBFRAME and is intended to be used as a supplement to the core BIBFRAME ontology. 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See http://ld4l.org for more information on these projects.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"Version 1.1.0","has_ontology_language":"OWL","nb_classes":278,"nb_individuals":30,"nb_properties":41,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BIFO","name":"BIFO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BIFO/1/bifo.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":78,"nb_individuals":0,"nb_properties":32,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BIODIVTHES","name":"BIODIVTHES","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BIODIVTHES/1/biodivthes.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":4,"nb_individuals":915,"nb_properties":43,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BIOLINK","name":"Biolink-Model","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BIOLINK/1/biolink.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":668,"nb_individuals":25,"nb_properties":828,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BIOMO","name":"BIOMO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BIOMO/1/biomo.owl","domain":null,"description":"Direct translation of the BIOM file format to OWL (http://biom-format.org/documentation/format_versions/biom-2.0.html).\n\nThis ontology offers a general schema for BIOM data. 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The goal of the BioPAX group is to develop a common exchange format for biological pathway data.  More information is available at http://www.biopax.org.  This ontology is freely available under the LGPL (http://www.gnu.org/copyleft/lesser.html).","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":69,"nb_individuals":0,"nb_properties":97,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BIOTOP","name":"BioTop","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BIOTOP/1/biotop.owl","domain":null,"description":"Upper-Level ontology for Biology and Medicine. 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Copyright of ontology\n\nThe ontology was created jointly by the BioSys group at the research unit of Applied mathematics and computer science  \nfrom genomes to the environment (MaIAGE) of the Institut National de la Recherche Agronomique (INRA) France, by the group the Large-scale Heterogeneous DAta and Knowledge (LaHDAK team) of the Laboratoire de recherche en informatique (LRI) of the Université Paris-Sud/CNRS, France  and by the Département MMIP AgroParisTech of the INRA, France.\nINRA, Agroparistech and  Université Paris-Sud own the copyright of the ontology BiPOm. \n\n2. License terms\n\nThe ontology BiPOm is licensed under the Creative Commons\nAttribution 4.0 Unported (CC BY 4.0) license. To view a\ncopy of this license, visit http://creativecommons.org/licenses/by/4.0/\nor send a letter to Creative Commons, 444 Castro Street, Suite 900,\nMountain View, California, 94041, USA.   \n\n\n3. Notice\nThis product contains references to classes of the Gene Ontology (GO) (http://geneontology.org/) developed by the Gene Ontology consortium, \nlicensed under the terms Creative Commons Attribution 4.0 Unported license (https://creativecommons.org/licenses/by/4.0/).\n\nThis product contains references to classes of the Chemical Entities of Biological Interest (ChEBI) (https://www.ebi.ac.uk/chebi/init.do) developed by the ChEBI consortium. \n\nThis product contains references to classes of the Sequence Ontology (SO) (http://www.sequenceontology.org/) developed by the SO consortium and are freely reusable. \n\nThis product contains references to classes of the Systems Biology Ontology (SBO)  (http://www.ebi.ac.uk/sbo/main/) developed by the SBO consortium, \nlicensed under the terms of Artistic License 2.0 (https://opensource.org/licenses/artistic-license-2.0.php).\n\nThis product contains references to properties of the Relation Ontology (RO)  (http://www.obofoundry.org/ontology/ro.html) developed by the OBO foundry, \nlicensed under the terms Creative Commons Attribution 3.0 Unported License (https://creativecommons.org/licenses/by/3.0/).\n\nThis product contains references to properties of the Basic Formal Ontology (BFO)  (http://ifomis.uni-saarland.de/bfo/) developed by the BFO consortium,\n licensed under the terms Creative Commons Attribution 3.0 Unported License (https://creativecommons.org/licenses/by/3.0/).\n\n4. Contact\nFor questions and remarks concerning BiPOm:\nAnne Goelzer\nAnne.Goelzer","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":142,"nb_individuals":5,"nb_properties":73,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"BIPON","name":"BIPON","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/BIPON/1/bipon.owl","domain":null,"description":"BiPON\n\n1. Copyright of ontology\n\nThe ontology was created jointly by the BioSys group at the research unit of Applied mathematics and computer science  \nfrom genomes to the environment (MaIAGE) of the Institut National\nde la Recherche Agronomique (INRA) France and by the group Bioinformatics of the Laboratoire de recherche en informatique (LRI) of the Université Paris-Sud/CNRS, France.\nINRA and  Université Paris-Sud own the copyright of the ontology BiPON. \n\n2. License terms\n\nThe ontology BiPON is licensed under the Creative Commons\nAttribution 4.0 Unported (CC BY 4.0) license. To view a\ncopy of this license, visit http://creativecommons.org/licenses/by/4.0/\nor send a letter to Creative Commons, 444 Castro Street, Suite 900,\nMountain View, California, 94041, USA.   \n\n\n3. Notice\nThis product contains references to classes of the Gene Ontology (GO) (http://geneontology.org/) developed by the Gene Ontology consortium, \nlicensed under the terms Creative Commons Attribution 4.0 Unported license (https://creativecommons.org/licenses/by/4.0/).\n\nThis product contains references to classes of the Chemical Entities of Biological Interest (ChEBI) (https://www.ebi.ac.uk/chebi/init.do) developed by the ChEBI consortium. \n\nThis product contains references to classes of the Sequence Ontology (SO) (http://www.sequenceontology.org/) developed by the SO consortium and are freely reusable. \n\nThis product contains references to classes of the Systems Biology Ontology (SBO)  (http://www.ebi.ac.uk/sbo/main/) developed by the SBO consortium, \nlicensed under the terms of Artistic License 2.0 (https://opensource.org/licenses/artistic-license-2.0.php).\n\nThis product contains references to properties of the Relation Ontology (RO)  (http://www.obofoundry.org/ontology/ro.html) developed by the OBO foundry, \nlicensed under the terms Creative Commons Attribution 3.0 Unported License (https://creativecommons.org/licenses/by/3.0/).\n\nThis product contains references to properties of the Basic Formal Ontology (BFO)  (http://ifomis.uni-saarland.de/bfo/) developed by the BFO consortium,\n licensed under the terms Creative Commons Attribution 3.0 Unported License (https://creativecommons.org/licenses/by/3.0/).\n\n4. 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Designed for use in RDF-based knowledge graphs, D3O supports flexible integration with other life science ontologies, promoting consistency and reuse in the broader scientific community.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"1.1","has_ontology_language":"OWL","nb_classes":294,"nb_individuals":0,"nb_properties":124,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DATACITE","name":"The DataCite Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DATACITE/1/datacite.owl","domain":null,"description":"\n## Description\n\nThe _DataCite Ontology_ (or simply DataCite) is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Schema (version 4.7)](https://datacite-metadata-schema.readthedocs.io/en/4.7/) to be described in RDF. \n\n![A diagram of the DataCite Ontology.](datacite.png)\n\nThe main intent of the DataCite Ontology is to provide a flexible mechanism to define identifiers for bibliographic resources (e.g., papers and datasets) and related entities (e.g., authors). To this end, DataCite uses the object property `datacite:hasIdentifier`, which has as its object a member of the class `datacite:Identifier` or of one of its sub-classes (`datacite:ResourceIdentifier`, `datacite:AgentIdentifier` or `datacite:RightsIdentifier`). \nIn turn, `datacite:AgentIdentifier` is further sub-classed by three additional classes, i.e., `datacite:PersonalIdentifier`, `datacite:OrganizationIdentifier`, and `datacite:FunderIdentifier`. \nThe exact nature of the identifier is then defined using the second DataCite object property `datacite:usesIdentifierScheme`, which has as its object the class `datacite:IdentifierScheme` or one of its sub-classes: `datacite:ResourceIdentifierScheme`, `datacite:AgentIdentifierScheme` or `datacite:RightsIdentifierScheme`. `datacite:AgentIdentifierScheme` is further sub-classed by three additional classes, i.e., `datacite:PersonalIdentifierScheme`, `datacite:OrganizationIdentifierScheme`, and `datacite:FunderIdentifierScheme`.\nThis provides a robust method for defining identifiers, since each specific identifier is defined as an individual member of its appropriate identifier scheme class. Of course, existing identifier schemes have been already defined within the ontology. For instance:\n\n* `datacite:doi` is an individual member of the class `datacite:ResourceIdentifierScheme` specifying a DataCite Digital Object Identifier (DOI);\n* `datacite:orcid` is an individual member of the class `datacite:PersonalIdentifierScheme` specifying an Open Researcher and Contributor Identifier (ORCID);\n* `datacite:fundref` is an individual member of the class `datacite:FunderIdentifierScheme` specifying a FundRef Funder Identifier.\n\nAs need arises, new identifiers can be added later as new members of each class, without having to modify the structure of the DataCite Ontology. In addition, some members, i.e., `datacite:local-resource-identifier-scheme`, `datacite:local-personal-identifier-scheme`, `datacite:local-organization-identifier-scheme` and `datacite:local-funder-identifier-scheme`, have been already added to permit the use of local identifiers.\n\nThe class `datacite:DescriptionType`, and the object properties `datacite:hasDescription` and `datacite:hasDescriptionType`, have also been defined in order to link an entity to another item representing an entity description of a particular type. \nThis is defined using the property `datacite:hasDescriptionType`, which must have as its object one of the members of the class `datacite:DescriptionType`, i.e., `datacite:abstract`, `datacite:methods`, `datacite:other`, `datacite:series-information` and `datacite:table-of-content`. \nIn this way, it is possible to associate written documents (e.g. journal articles or data articles) as descriptions of datasets.\n\nIt is also possible to provide a link between a resource, such as a dataset, and the document describing its metadata by means of the _Citation Typing Ontology_ (CiTO), using the property `cito:citesAsMetadataDocument`, and the _FRBR-aligned Bibliographic Ontology_ (FaBiO), by means of the class `fabio:MetadataDocument`. \nIn addition to these entities, the DataCite Ontology provides appropriate classes (i.e., `datacite:MetadataScheme`) and properties (i.e., `datacite:hasMetadataScheme`) to specify the particular scheme followed for creating the resource metadata exemplified in the metadata document.\n\nFinally, with the DataCite Ontology, it is possible to represent situations where a given relation between two entities needs to be qualified in some way, e.g. with a description that specifies the nature of said relation.\nThis is provided by the class `datacite:QualifiedRelation`, which represents a certain relationship existing between two entities. \nThe qualified relation is linked with one entity (more specifically, the subject of the relation) via the object property `datacite:hasRelationSubject`, and with the other (the object of the relation) via the object property `datacite:hasRelationObject`.\nThe type of relation itself is defined via the property `datacite:hasRelationCharacterization`, which links a qualified relation to its characterization made by using an object property such as `dcterms:relation`, `cito:cites`, or `frbr:isPartOf`. \nThis usage involves [OWL2 punning](http://www.w3.org/TR/2009/WD-owl2-new-features-20090611/#F12:_Punning), a mechanism according to which an object property can be used as the object of an OWL assertion by being considered simultaneously both as a normal property and also as a named individual of the class `owl:Thing`.\n\n## Examples of use\n\nIn the following subsections, we introduce some examples to showcase how to use the DataCite Ontology. \n\nThe prefixes that are used in all the examples provided below are defined as follows:\n\n    @prefix : <http://www.sparontologies.net/example/> .\n    @prefix co: <http://purl.org/co/> .\n    @prefix datacite: <http://purl.org/spar/datacite/> .\n    @prefix dcterms: <http://purl.org/dc/terms/> .\n    @prefix fabio: <http://purl.org/spar/fabio/> .\n    @prefix foaf: <http://xmlns.com/foaf/0.1/> .\n    @prefix literal: <http://www.essepuntato.it/2010/06/literalreification/> .\n    @prefix orcid: <http://orcid.org/> .\n    @prefix owl: <http://www.w3.org/2002/07/owl#> .\n    @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .\n    @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n    @prefix skos: <http://www.w3.org/2004/02/skos/core#> .\n    @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .\n\n### Datasets' DOIs and authors' ORCIDs \n\nDataCite allows one to associate identifiers to a bibliographic entity (e.g., a dataset, a person, an article) specifying their exact nature by means of the object property `datacite:usesIdentifierScheme`. \nIn addition, it is also possible, through the object property `datacite:hasDescription`, to link an entity to another item representing an entity description of a particular type. \nThis is defined using the property `datacite:hasDescriptionType`, which must have as its object one of the members of the class `datacite:DescriptionType`, i.e., `datacite:abstract`, `datacite:other`, `datacite:series-information`, `datacite:methods`, and `datacite:table-of-content`. \nIn this way, it is possible to associate written documents (e.g., journal articles) as descriptions of datasets.\n\n\n    <http://dx.doi.org/10.5061/dryad.15v26> a fabio:Dataset ;\n        datacite:hasIdentifier :dataset-doi ;\n        dcterms:creator\n            orcid:0000-0002-5159-9717 ,\n            orcid:0000-0002-7811-3617 ;\n        datacite:hasDescription\n            <http://dx.doi.org/10.1098/rsbl.2015.0486> .\n\n    <http://dx.doi.org/10.1098/rsbl.2015.0486>\n        a fabio:JournalArticle ;\n        datacite:hasIdentifier :paper-doi ;\n        dcterms:creator\n            orcid:0000-0002-5159-9717 ,\n            orcid:0000-0002-7811-3617 ;\n        datacite:hasDescriptionType datacite:other .\n\n    :paper-doi a datacite:PrimaryResourceIdentifier ;\n        literal:hasLiteralValue \"10.1098/rsbl.2015.0486\" ;\n        datacite:usesIdentifierScheme datacite:doi .\n\n    :dataset-doi a datacite:PrimaryResourceIdentifier ;\n        literal:hasLiteralValue \"10.5061/dryad.mq8r2\" ;\n        datacite:usesIdentifierScheme datacite:doi .\n\n    orcid:0000-0002-5159-9717 a foaf:Person ;\n        foaf:name \"Nidhi Seethapathi\" ;\n        datacite:hasIdentifier :seethapathi-orcid .\n\n    :seethapathi-orcid a datacite:PersonalIdentifier ;\n        literal:hasLiteralValue \"0000-0002-5159-9717\" ;\n        datacite:usesIdentifierScheme datacite:orcid .\n\n    orcid:0000-0002-7811-3617 a foaf:Person ;\n        foaf:name \"Manoj Srinivasan\" ;\n        datacite:hasIdentifier :srinivasan-orcid .\n\n    :srinivasan-orcid a datacite:PersonalIdentifier ;\n        literal:hasLiteralValue \"0000-0002-7811-3617\" ;\n        datacite:usesIdentifierScheme datacite:orcid .\n\n\n### Competency Questions\n\nThe DataCite Ontology can be used for answering several questions related to related to the identification, attribution, and discoverability of research products within a scholarly knowledge graph. \nIn the following subsections, some of them are introduced together with their respective SPARQL queries. \n\nThe prefixes that are used in all the SPARQL queries provided below are defined as follows:\n\n    PREFIX datacite: <http://purl.org/spar/datacite/>\n    PREFIX dcterms: <http://purl.org/dc/terms/>\n    PREFIX fabio: <http://purl.org/spar/fabio/>\n    PREFIX foaf: <http://xmlns.com/foaf/0.1/>\n    PREFIX literal: <http://www.essepuntato.it/2010/06/literalreification/>\n\n#### CQ1\n\nWhich article provides the description for a specific dataset identified by the DOI \"10.5061/dryad.mq8r2\"?\n\n    SELECT ?article ?article_doi\n    WHERE {\n        ?dataset_id literal:hasLiteralValue \"10.5061/dryad.mq8r2\" .\n        ?dataset datacite:hasIdentifier ?dataset_id ;\n            a fabio:Dataset ;\n            datacite:hasDescription ?article .\n        \n        ?article datacite:hasIdentifier ?paper_id .\n        ?paper_id literal:hasLiteralValue ?article_doi .\n    }\n\n#### CQ2\n\nWho are the creators associated with both the dataset and the article?\n\n    SELECT DISTINCT ?name ?orcid_uri\n    WHERE {\n        ?dataset a fabio:Dataset ;\n                dcterms:creator ?orcid_uri .\n        \n        ?article a fabio:JournalArticle ;\n                dcterms:creator ?orcid_uri .\n                \n        ?orcid_uri foaf:name ?name .\n    }\n\n#### CQ3\n\nWhat are the names and ORCID iDs of all researchers mentioned in the graph?\n\n    SELECT ?name ?orcid_value\n    WHERE {\n        ?person a foaf:Person ;\n                foaf:name ?name ;\n                datacite:hasIdentifier ?id_node .\n        \n        ?id_node datacite:usesIdentifierScheme datacite:orcid ;\n                literal:hasLiteralValue ?orcid_value .\n    }\n\n#### CQ4\n\nList all resources that have a description type categorized as \"other\".\n\n    SELECT ?resource\n    WHERE {\n        ?resource datacite:hasDescriptionType datacite:other .\n    }\n\n#### CQ5\n\nHow many identifiers are registered for each identifier scheme?\n\n    SELECT ?scheme (COUNT(?id_node) AS ?count)\n    WHERE {\n        ?id_node datacite:usesIdentifierScheme ?scheme .\n    }\n    GROUP BY ?scheme\n\n        ","documentation":"http://www.sparontologies.net/ontologies/datacite","publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"1.3.1","has_ontology_language":"OWL","nb_classes":24,"nb_individuals":79,"nb_properties":37,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DATACITE-VOCAB","name":"DATACITE-VOCAB","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DATACITE-VOCAB/1/datacite-vocab.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":2,"nb_individuals":132,"nb_properties":14,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DATAHUB","name":"DATAHUB","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DATAHUB/1/datahub.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":112,"nb_individuals":19,"nb_properties":5,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DCAT","name":"El vocabulario de catálogo de datos","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DCAT/1/dcat.owl","domain":null,"description":"DCAT es un vocabulario RDF diseñado para facilitar la interoperabilidad entre catálogo de datos publicados en la Web.\n          Gracias a utilizar DCAT para describir conjuntos de datos en los catálogo de datos, los editores aumentan el descubrimiento y permiten\n          que las aplicaciones consuman fácilmente los metadatos de varios catálogos.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":15,"nb_individuals":1,"nb_properties":36,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DCAT-FDC","name":"Datakatalogvokabular","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DCAT-FDC/1/dcat-fdc.owl","domain":null,"description":"DCAT er et RDF-vokabular som har til formål at understøtte interoperabilitet mellem datakataloger udgivet på nettet. Ved at anvende DCAT til at beskrive datasæt i datakataloger, kan udgivere øge findbarhed og gøre det gøre det lettere for applikationer at anvende metadata fra forskellige kataloger. Derudover understøttes decentraliseret udstilling af kataloger og fødererede datasætsøgninger på tværs af websider. Aggregerede DCAT-metadata kan fungere som fortegnelsesfiler der kan understøtte digital bevaring. DCAT er defineret på http://www.w3.org/TR/vocab-dcat/. Enhver forskel mellem det normative dokument og dette schema er en fejl i dette schema.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"Toto je aktualizovaná kopie slovníku DCAT verze 2.0, převzatá z https://www.w3.org/ns/dcat.ttl","has_ontology_language":"OWL","nb_classes":19,"nb_individuals":14,"nb_properties":56,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DCAT3","name":"データ・カタログ語彙（DCAT）","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DCAT3/1/dcat3.owl","domain":null,"description":"هي أنطولوجية تسهل تبادل البيانات بين مختلف الفهارس على الوب. استخدام هذه الأنطولوجية يساعد على اكتشاف قوائم  البيانات المنشورة على الوب و يمكن التطبيقات المختلفة من الاستفادة أتوماتيكيا من البيانات المتاحة من مختلف الفهارس.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"3","has_ontology_language":"OWL","nb_classes":21,"nb_individuals":14,"nb_properties":92,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DCM","name":"DCM","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DCM/1/dcm.owl","domain":null,"description":"DICOM PS3.16 DCMR Annex D DICOM Controlled Terminology Definitions; converted by \"extractdcmdefinitionsasowl.xsl\".","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"2026b_20260326","has_ontology_language":"OWL","nb_classes":5146,"nb_individuals":80,"nb_properties":10,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DCMITYPE","name":"DCMI Abstract Model","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DCMITYPE/1/dcmitype.owl","domain":null,"description":"OWL 2 DL ontology for a few terms of the DCMI abstract model from the http://purl.org/dc/dcam/ namespace","documentation":"http://www.w3.org/TR/skos-reference/","publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":18,"nb_individuals":13,"nb_properties":34,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DCO","name":"Dispedia Vocabulary (Core Ontology)","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DCO/1/dco.owl","domain":null,"description":"Diese Ontologie (Vokabular) enthält alle Kern-Konzepte des Dispedia Informationslogistik Systems.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"0.7.0.0002","has_ontology_language":"OWL","nb_classes":49,"nb_individuals":0,"nb_properties":76,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DCT","name":"DCT","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DCT/1/dct.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":25,"nb_individuals":100,"nb_properties":103,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DCTERMS","name":"DCTERMS","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DCTERMS/1/dcterms.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":25,"nb_individuals":100,"nb_properties":103,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DDANAT","name":"Dicty Anatomy Ontology (DDANAT)","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DDANAT/1/ddanat.owl","domain":null,"description":"A structured controlled vocabulary of anatomies of the slime-mold Dictyostelium discoideum.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"http://dictybase.org/","version":null,"has_ontology_language":"OWL","nb_classes":135,"nb_individuals":0,"nb_properties":27,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DDI","name":"DDI","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DDI/1/ddi.owl","domain":null,"description":"An information artifact is, loosely, a dependent continuant or its bearer that is created as the result of one or more intentional processes. Examples: uniprot, the english language, the contents of this document or a printout of it, the temperature measurements from a weather balloon. For more information, see the project home page at http://code.google.com/p/information-artifact-ontology/","documentation":"http://code.google.com/p/information-artifact-ontology/","publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"$Revision$","has_ontology_language":"OWL","nb_classes":127,"nb_individuals":3,"nb_properties":42,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DDIEM","name":"DDIEM","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DDIEM/1/ddiem.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":22,"nb_individuals":0,"nb_properties":4,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DDPHENO","name":"Dicty Phenotype Ontology (DDPHENO)","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DDPHENO/1/ddpheno.owl","domain":null,"description":"A structured controlled vocabulary of phenotypes of the slime-mould Dictyostelium discoideum.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"http://dictybase.org/","version":"2023-08-26","has_ontology_language":"OWL","nb_classes":1373,"nb_individuals":0,"nb_properties":25,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DDSS","name":"DDSS","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DDSS/1/ddss.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":20427,"nb_individuals":0,"nb_properties":68941,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"DEB","name":"Devices, Experimental scaffolds and Biomaterials Ontology (DEB)","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/DEB/1/deb.owl","domain":null,"description":"An ontology developed to facilitate information curation in the area of medical devices, experimental scaffolds and biomaterials. 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IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":168,"nb_individuals":1,"nb_properties":74,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"GFVO","name":"Genomic Feature and Variation Ontology (GFVO)","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/GFVO/1/gfvo.owl","domain":null,"description":"The Genomic Feature and Variation Ontology (GFVO) is modeled to represent genomic data using the Resource Description Format (RDF). 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Ontologia do SIM foi desenvolvida no contexto do projeto DIASUS. Ela buscou resgatar a estrutura presente na ficha de preenchimento da Declaração de Óbito - DO, do Sistema de Informação de Mortalidade - SIM, do Sistema Único de Saúde, do Brasil. As classes são os blocos de preenchimento e as propriedades de dados, os campos da ficha. 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As classes são os blocos de preenchimento e as propriedades de dados, os campos da ficha. 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OPL is based on the Basic Formal Ontology (BFO) and follows the rules set by the OBO Foundry consortium.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"https://github.com/OPL-ontology/OPL","version":"2023-08-28","has_ontology_language":"OWL","nb_classes":561,"nb_individuals":20,"nb_properties":125,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"OPMI","name":"OPMI: Ontology of Precision Medicine and Investigation","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/OPMI/1/opmi.owl","domain":null,"description":"OPMI is a biomedical ontology in the area of precision medicine and its related investigations. It is community-driven and developed by following the OBO Foundry ontology development principles.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"https://github.com/OPMI/opmi","version":"2026-06-20","has_ontology_language":"OWL","nb_classes":4041,"nb_individuals":36,"nb_properties":300,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"OPTIMAL","name":"OPTIMAL","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/OPTIMAL/1/optimal.owl","domain":null,"description":"The purpose of the ontology is to identify adherence to physical activity or exercise based on factors characterizing patient profile (e.g., demographics, lifestyle, social support, physiological condition, etc.). The ontology is focusing on physical-activity-related adherence subject matter of patients with heart disease. The main target users are healthcare professionals working with cardiac patients in a matter of recommending or coaching of physical activity and exercise. Another group of target users is professionals involved in the development of software solutions to support patient physical activity and exercise performance.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":142,"nb_individuals":371,"nb_properties":14,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"OPTION-ONTOLOGY","name":"OPTION - Ontology for Benchmarking Optimization Algorithms","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/OPTION-ONTOLOGY/1/option-ontology.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"1.0.0","has_ontology_language":"OWL","nb_classes":110,"nb_individuals":6,"nb_properties":42,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"ORCS","name":"Ontology for Representing CDM Semantics","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/ORCS/1/orcs.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"2021-11-13","has_ontology_language":"OWL","nb_classes":861,"nb_individuals":69,"nb_properties":612,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"ORDO","name":"ORDO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/ORDO/1/ordo.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"4.8","has_ontology_language":"OWL","nb_classes":16036,"nb_individuals":0,"nb_properties":40,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"ORNASEQ","name":"Ontology for RNA sequencing (ORNASEQ)","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/ORNASEQ/1/ornaseq.owl","domain":null,"description":"The following ontology is provided by Stephen A Fisher and Junhyong Kim to annotate next-generation sequencing experiments performed on RNA.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"http://kim.bio.upenn.edu/software/ornaseq.shtml","version":null,"has_ontology_language":"OWL","nb_classes":164,"nb_individuals":1,"nb_properties":21,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"ORTH","name":"Orthology Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/ORTH/1/orth.owl","domain":null,"description":"The ORTH ontology mainly accommodates three different types of data structures to represent homology information. These data structures may encapsulate information that can often be inferred or queried instead of being materialised. They are described in the next subsections. In Ref. [[1]](http://ceur-ws.org/Vol-2042/paper36.pdf), we demonstrate that for one given orthology database billions of [is orthologous](#hasOrtholog) to assertions can be inferred instead of materialised from the hierarchical orthologous groups (i.e.: space O(n2) where n is the number of genes). Figure 1 illustrates these data structures according to the verbosity (i.e.: the number of needed triples) and the implicit information encapsulated.\n\n*Figure 1. The different levels of homology information expressiveness by using ORTH ontology.*\n\n![fig1](./images/fig1.png)\n\n### Non-hierarchical cluster of homologous sequences\n\nSeveral orthology databases solely generate non-hierarchical [clusters of homologous sequences](#HomologsCluster)  or besides HOGs, they provide non-hierarchical clusters (i.e.: groups). Frequently the number of pairwise homology relations derived from the non-hierarchical [clusters of homologous sequences](#HomologsCluster)  are not the same as the ones of HOGs. In the context of the ORTH ontology, a cluster can be interpreted as a tree with a root node and leaves (i.e.: without intermediate nodes). Figure 2 illustrates how the HOG depicted in Figure 2 can be represented as the non-hierarchical [clusters of homologous sequences](#HomologsCluster) . For the sake of simplicity, the inst:Passeriformes instance is not considered in Figure 2. In the context of the non-hierarchical clusters, a [Cluster of orthologs](#OrthologsCluster) must contain only instances of a [Gene](#Gene), [Protein](#Protein) or [gene region](#Subgene) which are all orthologs among them. In a similar way to the cluster of orthologs (i.e.: orth:OrthologsCluster), a [Cluster of paralogs](#ParalogsCluster) (i.e.: orth:ParalogsCluster) must contain only instances of a [Gene](#Gene), [Protein](#Protein) or [gene region](#Subgene) which are all paralogs among them. For example, we may notice that due to a duplication event in the HOG in Figure 2, two clusters of orthologs are explicitly defined at the Archelosauria taxonomic level (i.e.: inst:Archelosauria_1 and inst:Archelosauria_2) in Figure 2. Therefore, for each of these clusters all genes are orthologous to each other. For instance, the inst:Archelosauria_1 orthologous cluster [has homologous member](#hasHomologousMember)s the inst:S100P_PELSI, inst:S100P_FICAL and inst:S100P_TAEGU genes. However, the inst:Archelosauria_1 cluster does not have the inst:S100P_ANAPL gene as a member because this gene [is paralogous to](#hasParalog)  inst:S100P_FICAL and inst:S100P_TAEGU genes.\n\n*Figure 2. A non hierarchical cluster instantiation example. For the sake of example and to improve readability, inst: is a prefix to indicate it is an instance of a class.*\n\n![fig3](./images/fig3.png)\n\nWhen comparing the data structure of the non-hierarchical clusters (i.e.: flat clusters) to HOGs, one may notice that flat clusters are a more verbose representation because we need to assign more triples to explicitly define flat cluster members which are implicitly described in a HOG. For example, we have to create two orthologous clusters (i.e. inst:Archelosauria_1 and inst:Archelosauria_2) at the same taxonomic level to represent orthologous groups at the Archelosauria taxon. These groups were derived from the HOG example in Figure 2. Moreover, a HOG contains more information that is not captured by non-hierarchical clusters such as the order of speciation and duplication events. This information is crucial to infer for instance [inparalogy relations](#InparalogyRelation).\n\nYet, we do not need to materialize flat cluster information from HOGs because we can infer or query them. Therefore, we recommend to materialise flat clusters only if they cannot be derived from a HOG or a use case where the number of derived clusters are small and/or the performance in terms of query execution time overcomes storage constraints. For example, some orthology databases do not predict orthology information as a HOG.\n\nThe query below retrieves the orthologous genes of inst:S100P_PELSI from the flat clusters illustrated in Figure 2. To query paralogy relations, we only need to replace orth:OrthologsCluster with orth:ParalogsCluster.\n\n#### SPARQL Query\n```\nSELECT ?gene1 ?gene2 WHERE  { \n   ?cluster a orth:OrthologsCluster. \n   ?cluster orth:hasHomologousMember ?gene1. \n   ?cluster orth:hasHomologousMember ?gene2. \n  \n   VALUES( ?gene1 ){ ( inst:S100P_PELSI ) }\n   FILTER(?gene1 != ?gene2)\n }\n```\n\n#### Query results\n```\ngene1             gene2\ninst:S100P_PELSI  inst:S100P_FICAL\ninst:S100P_PELSI  inst:S100P_TAEGU\ninst:S100P_PELSI  inst:S100P_ANAPL\n```\n\nSome examples of the orthology databases that provide non-hierarchical cluster of homologous sequences: [OMA](https://omabrowser.org/oma/home/), [OrthoDB](https://www.orthodb.org/) and [InParanoid](http://inparanoid.sbc.su.se/cgi-bin/index.cgi).\n\n### Pairwise-homology relations between sequences\n\nBy using ORTH ontology terms, we can describe, for example, the following homologous relations:\n\n* [orthology relation](#OrthologyRelation)\n* [paralogy relation](#ParalogyRelation)\n* [outparalogy relation](#OutparalogyRelation)\n* [inparalogy relation](#InparalogyRelation)\n* [co-orthology relation](#CoOrthologyRelation)\n\nThe pairwise-homology relations are indeed defined as OWL classes rather than properties because frequently these relations are contextualised with respect to a [taxonomic level](#TaxonomicRange) of reference, a [speciation](#http://purl.obolibrary.org/obo/CDAO_0000121) event, a [geneDuplication](#http://purl.obolibrary.org/obo/CDAO_0000077) event, and so on. Besides this, due to the fact that the number of homology relations drastically increases with the number of genomes, it is recommended to materialise these relations if only if they cannot be derived from HOGs or flat clusters (see an example in Figure 3). Some orthology databases solely provide orthology pairwise relations. Therefore, a pairwise relation cannot explicitly be represented with a HOG or a non-hierarchical cluster.\n\n*Figure 3. The pairwise-homologous relations between sequences derived from HOG illustrated in Figure 4 and flat cluster in Figure 2. For the sake of example and to improve readability, inst: is a prefix to indicate it is an instance of a class.*\n\n![fig4](./images/fig4.png)\n\nTo facilitate the knowledge extraction, the ORTH pairwise-homology relation classes might be populated by applying Horn-like rules or queries over HOGs and/or flat clusters. Moreover, ORTH ontology also contains OWL object properties to represent non-contextualised homology pairwise relations by asserting the [has ortholog](#hasOrtholog), [has paralog](#hasParalog), [has xenolog](#hasXenolog) and [has homolog](#hasHomolog) object properties. One can notice that these properties might be inferred from the instances of ORTH pairwise-homology relation classes. Moreover, the pairwise-homology relations such as the inparalogy relation class cannot be defined as an OWL object property because it needs to be contextualised with respect to a speciation event of reference.\n\nThe query below retrieves the orthologous genes of inst:S100P_PELSI from the orthology-relations such as the one illustrated in Figure 3A. To query paralogy relations, we only need to replace orth:OrthologyRelation with orth:ParalogyRelation.\n\n\n```\nSELECT  ?gene1 ?gene2 WHERE  { \n   ?relation a orth:OrthologyRelation. \n   ?relation orth:hasHomologousMember ?gene1. \n   ?relation orth:hasHomologousMember ?gene2. \n  \n   VALUES( ?gene1 ){ ( inst:S100P_PELSI ) }\n   FILTER(?gene1 != ?gene2)\n   }\n```\n\nIf the [has ortholog](#hasOrtholog) property is inferred or materialised, the previous queries can be rewritten as follows:\n\n```\nSELECT ?gene1 ?gene2 WHERE  {  \n   ?gene1 orth:hasOrtholog ?gene2. \n   VALUES( ?gene1 ){ ( inst:S100P_PELSI ) }\n   }\n```\n\n###  Hierarchical orthologous group (HOG)\n\nHierarchical Orthologous Groups (HOGs) are defined as sets of genes that have descended from a single common ancestor within a taxonomic range of interest [[2]](https://doi.org/10.1371/journal.pone.0053786). In the computer science context, the data structure to represent a HOG is a Tree. Figure 4 depicts part of an instantiation example of a HOG with a root at the level of Archelosauria taxon (e.g., inst:Archelosauri). For the sake of simplicity, several property assertions are absent in Figure 4. When interpreting a HOG as a tree, the root node (e.g., inst:Archelosauria) must be an instance of orth:OrthologsCluster (i.e., labelled as [Cluster of orthologs](#OrthologsCluster)) the intermediate nodes must be instances of orth:OrthologsCluster or orth:ParalogsCluster (i.e., labelled as [Cluster of paralogs](#ParalogsCluster)). The leaves may be instances of [Gene](#Gene), [Protein](#Protein) or [gene region](#Subgene). A [Cluster of homologous sequences](#HomologsCluster) may contain other clusters (e.g., [Cluster of orthologs](#OrthologsCluster)) and [Sequence units](#SequenceUnit) (e.g., [Gene](#Gene)). To assign that a cluster contains another one, we should assert the orth:hasHomologousMember property (i.e., [has homologous member](#hasHomologousMember)) to a given [Cluster of homologous sequences](#HomologsCluster).\n\nFrom the HOG illustrated in Figure 4, we can infer that inst:S100P_PELSI gene [is orthologous to](#hasOrtholog) inst:S100P_FICAL, inst:S100P_TAEGU and inst:S100P_ANAPL at the taxonomic level Archelosauria. In addition, inst:S100P_ANAPL [is paralogous to](#hasParalog) the orthologous genes inst:S100P_FICAL and inst:S100P_TAEGU due to the fact of a duplication event (i.e., inst:Duplication a [Cluster of paralogs](#ParalogsCluster)).\n\nThe query below retrieves the orthologous genes of inst:S100P_PELSI from the HOG illustrated in Figure 4. Depending on the type of orthology prediction, it can be [Gene](#Gene), [Protein](#Protein) or [gene region](#Subgene) based then the query below can be rewritten accordingly by replacing orth:SequenceUnit with orth:Gene, orth:Protein or orth:Subgene. To query paralogy relations, we only need to replace orth:OrthologsCluster with orth:ParalogsCluster.\n\n#### SPARQL Query\n```\nSELECT ?gene1 ?gene2 WHERE  { \n   ?gene1 a orth:SequenceUnit. #Gene, [Protein](#Protein) or  [gene region](#Subgene)\n   ?gene2 a orth:SequenceUnit. #Gene, [Protein](#Protein) or  [gene region](#Subgene)\n   ?cluster a orth:OrthologsCluster. \n   ?cluster orth:hasHomologousMember ?node1. \n   ?cluster orth:hasHomologousMember ?node2. \n   ?node2 orth:hasHomologousMember* ?gene2. \n   ?node1 orth:hasHomologousMember* ?gene1. \n   \n   VALUES( ?gene1 ){ ( inst:S100P_PELSI ) }\n    \n   FILTER(?node1 != ?node2)\n   }\n```\n\n#### Query results\n```\ngene1             gene2\ninst:S100P_PELSI  inst:S100P_FICAL\ninst:S100P_PELSI  inst:S100P_TAEGU\ninst:S100P_PELSI  inst:S100P_ANAPL\n```\n\nSome examples of orthology databases that provide HOGs: [OMA](https://omabrowser.org/oma/home/), [HieranoiDB](http://hieranoidb.sbc.su.se/) and [KEGG OC](https://www.genome.jp/tools/oc/).\n\n*Figure 4. An instantiation example of a Hierarchical Orthologous Group using ORTH terms. For the sake of example and to improve readability, inst: is a prefix to indicate it is an instance of a class.*\n ","documentation":null,"publication":"de Farias, T. M., Chiba, H., & Fernández-Breis, J. T. (2017, December). Leveraging logical rules for efficacious representation of large orthology datasets. In Proceedings of the 10th International Semantic Web Applications and Tools for Healthcare and Life Sciences (SWAT4HCLS) Conference. <a href=\"http://ceur-ws.org/Vol-2042/paper36.pdf\">http://ceur-ws.org/Vol-2042/paper36.pdf</a>","publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"2.0","has_ontology_language":"OWL","nb_classes":34,"nb_individuals":6,"nb_properties":67,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"OSDI","name":"OSDi","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/OSDI/1/osdi.owl","domain":null,"description":"Ontología diseñada para recopilar e inferir los parámetros necesarios para crear una evaluación de tecnología sanitaria basada en simulación","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"1.0","has_ontology_language":"OWL","nb_classes":83,"nb_individuals":43,"nb_properties":137,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"OVAE","name":"OVAE: Ontology of Vaccine Adverse Events","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/OVAE/1/ovae.owl","domain":null,"description":"OVAE is a biomedical ontology in the area of vaccine adverse events. OVAE is an extension of the community-based Ontology of Adverse Events (OAE). ","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"http://www.violinet.org/ovae/","version":"Vision Release: 1.0.34","has_ontology_language":"OWL","nb_classes":1555,"nb_individuals":22,"nb_properties":255,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PACO","name":"Physical Activity Concept Ontology (PACO)","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PACO/1/paco.owl","domain":null,"description":"this is a physical activity concept ontology that contains various types of physical activities and the modifiers used to qualify/quantify physical activities","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":224,"nb_individuals":59,"nb_properties":29,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PAE","name":"PAE","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PAE/1/pae.owl","domain":null,"description":"\"Filtered from plant_ontology_assert.obo to have only plant anatomical entity terms. Matches plant_ontology.obo version #20","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":1548,"nb_individuals":0,"nb_properties":56,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PAIN","name":"The Pain Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PAIN/1/pain.owl","domain":null,"description":"The Pain Ontology contains terms for representing pain as defined by the International Association For the Study of Pain (IASP), meaning that pain is both an unpleasant physical sensation and unpleasant emotional experience. It includes terms and axioms to represent the multidimensional aspect of pain, such as temporality (e.g, acute, chronic), qualitative (e.g., sharp, throbbing), extent (e.g., local, widespread), biological mechanism (e.g., nociceptive, neuropathic), and specific anatomical locations (e.g., back, knee).","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"https://github.com/uflcod/pain-ontology","version":"2026-04-13","has_ontology_language":"OWL","nb_classes":214,"nb_individuals":9,"nb_properties":162,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PANDA","name":"Probabilistic Knowledge Assembly Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PANDA/1/panda.owl","domain":null,"description":"Probabilistic Knowledge Assembly (PANDA) Ontology has been developed in the context of the DARPA's Big Mechanism research program. It provides a semantic interface for capturing information on molecular interactions extracted from scientific texts. Conceptually, PAF ontology supports 3 layers of representation:\n1) Domain knowledge: molecular interactions, their participants, structure, and (possibly) formal relationships to some external biological models.\n2) Textual evidence: sentences extracted from text, speaking about those interactions, and their provenance-related information.\n3) Probabilisitic information associated with different aspects of the representation (see the imported Uncertainty Ontology).","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"0.9","has_ontology_language":"OWL","nb_classes":75,"nb_individuals":0,"nb_properties":62,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PANET","name":"The Photon and Neutron Experimental Techniques Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PANET/1/panet.owl","domain":null,"description":"Photon and Neutron Experimental Techniques: An ontology of  techniques within the photon and neutron (PaN) domain.\n\nPurpose\n\nThe main purpose of this ontology is to provide a controlled vocabulary, global PIDs and annotations \nfor photon and neutron techniques, to support PaN FAIR data catalogue functionality.\n\nDesign philosophy\n\nIn the original version of the ontology, everything is a class and all classes are techniques. Object property relations\nare implied but not formalized in this version. Subclass/superclass relationships and intersections are \nused to define specific technique classes in terms of broader superclasses. This is seen as a key\nrequirement in order to carry out catalogue searcher for broader concepts, for example.\n\nThe ontology has since been restrucred to include both technique classes and specifier classes. The relationships between the two are also made explicit and formalized in the form of Object Properties. The specifier classes were created by identifying technique classes that act as umbrella terms. These techniques are defined using object properties and specifiers. The rest are defined in terms of other techniques using a mix of subclass and equivalence axioms.\n\nThis project was undertaken under ExPaNDS WP3.2 (https://expands.eu/)\n\nThe ontology is can be found here: https://github.com/ExPaNDS-eu/ExPaNDS-experimental-techniques-ontology\n\nThe restructuring of the ontology is detailed in a paper: https://doi.org/10.1107/S1600577525005272\n\nPhoton and neutron PaN ontologies developed under ExPaNDS are documented here: https://doi.org/10.5281/zenodo.4806026","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":"1.3.0","has_ontology_language":"OWL","nb_classes":508,"nb_individuals":0,"nb_properties":23,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PARTUMDO","name":"PARTUMDO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PARTUMDO/1/partumdo.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":734,"nb_individuals":4844,"nb_properties":16,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PATCT","name":"PATCT","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PATCT/1/patct.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":153,"nb_individuals":0,"nb_properties":7,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PATEL","name":"PATEL","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PATEL/1/patel.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":123,"nb_individuals":0,"nb_properties":72,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PATGV","name":"PATGV","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PATGV/1/patgv.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":73,"nb_individuals":0,"nb_properties":12,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PATHLEX","name":"PATHLEX","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PATHLEX/1/pathlex.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":1786,"nb_individuals":0,"nb_properties":5,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PATIT","name":"PATIT","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PATIT/1/patit.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":139,"nb_individuals":0,"nb_properties":12,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PATMHC","name":"PATMHC","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PATMHC/1/patmhc.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":228,"nb_individuals":0,"nb_properties":7,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PATO","name":"PATO - the Phenotype And Trait Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PATO/1/pato.owl","domain":null,"description":"An ontology of phenotypic qualities (properties, attributes or characteristics).","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"https://github.com/pato-ontology/pato/","version":"2025-05-14","has_ontology_language":"OWL","nb_classes":8625,"nb_individuals":0,"nb_properties":357,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PAV","name":"PAV - Provenance, Authoring and Versioning","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PAV/1/pav.owl","domain":null,"description":"PAV supplies terms for distinguishing between the different roles of the agents contributing content in current web based systems: contributors, authors, curators and digital artifact creators. The ontology also provides terms for tracking provenance of digital entities that are published on the web and then accessed, transformed and consumed. In order to support broader interoperability, PAV specializes the general purpose W3C PROV provenance model (PROV-O).\n\nPAV distinguishes between the data related to the digital artifact - named Provenance - and those related to the actual knowledge creation and therefore to the intellectual property aspects – named Authoring. The Versioning axis describes the evolution of digital entities in time.\n\nUsing PAV, descriptions can define the authors that originate or gave existence to the work that is expressed in the digital resource (pav:authoredBy); curators (pav:curatedBy) who are content specialists responsible for shaping the expression in an appropriate format, and contributors (super-property pav:contributedBy) that provided some help in conceiving the resource or in the expressed knowledge creation/extraction.\n\nThese provenance aspects can be detailed with dates using pav:curatedOn, pav:authoredOn, etc. Further details about the creation activities, such as different authors contributing specific parts of the resource at different dates are out of scope for PAV and should be defined using vocabularies like PROV-O and additional intermediate entities to describe the different states.\n\nFor resources based on other resources, PAV allows specification of direct retrieval (pav:retrievedFrom), import through transformations (pav:importedFrom) and sources that were merely consulted (pav:sourceAccessedAt). These aspects can also define the agents responsible using pav:retrievedBy, pav:importedBy and pav:sourceAccessedBy.\n\nVersion number of a resource can be given with pav:version, the previous version of the resource with pav:previousVersion, and any other earlier versions with pav:hasEarlierVersion. Unversioned, 'mutable' resources can specify their current version as a snapshot resource using pav:hasCurrentVersion and list the earlier versions using pav:hasVersion.\n\nThe creation of the digital representation (e.g. an RDF graph or a .docx file) can in many cases be different from the authorship of the content/knowledge, and in PAV this digital creation is specified using pav:createdBy, pav:createdWith and pav:createdOn.\n\nPAV specializes terms from W3C PROV-O (prov:) and DC Terms (dcterms:), however these ontologies are not OWL imported as PAV can be used independently. The \"is defined by\" links indicate where those terms are included from. See http://www.w3.org/TR/prov-o and http://dublincore.org/documents/2012/06/14/dcmi-terms/ for more details. See http://purl.org/pav/mapping/dcterms For a comprehensive SKOS mapping to DC Terms.\n\nPAV 2 is based on PAV 1.2 but in a different namespace ( http://purl.org/pav/ ). Terms compatible with 1.2 are indicated in this ontology using owl:equivalentProperty.\n\nThe ontology IRI http://purl.org/pav/ always resolve to the latest version of PAV 2. Particular versionIRIs such as http://purl.org/pav/2.1 can be used by clients to force imports of a particular version - note however that all terms are defined directly in the http://purl.org/pav/ namespace.\n\nThe goal of PAV is to provide a lightweight, straight forward way to give the essential information about authorship, provenance and versioning, and therefore these properties are described directly on the published resource. As such, PAV does not define any classes or restrict domain/ranges, as all properties are applicable to any online resource.\n\n--\n\nCopyright 2008-2014 Massachusetts General Hospital; Harvard Medical School; Balboa Systems; University of Manchester\n\nLicensed under the Apache License, Version 2.0 (the \"License\"); you may not use this file except in compliance with the License.  You may obtain a copy of the License at\n\n    http://www.apache.org/licenses/LICENSE-2.0\n\nUnless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the specific language governing permissions and limitations under the License.\n","documentation":"https://code.google.com/p/pav-ontology/wiki/Versions","publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"http://purl.org/pav/home","version":"2.3.1","has_ontology_language":"OWL","nb_classes":2,"nb_individuals":9,"nb_properties":65,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PBO","name":"PBO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PBO/1/pbo.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":2272,"nb_individuals":0,"nb_properties":5,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PBPKO","name":"PBPK Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PBPKO/1/pbpko.owl","domain":null,"description":"The PBPK (Physiologically Based Pharmacokinetic) Ontology (PBPKO) describes PBPK models, parameters, compartments, and pharmacokinetic processes for pharmaceutical and environmental life-science applications. It is aligned with Basic Formal Ontology (BFO) and the Relation Ontology (RO), and integrates terms from OBO Foundry ontologies including GO, OBI, and IAO.","documentation":"https://insilicovida-research-lab.github.io/pbpko/","publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"https://github.com/InSilicoVida-Research-Lab/pbpko","version":"2026-07-15","has_ontology_language":"OWL","nb_classes":1024,"nb_individuals":326,"nb_properties":153,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PCAO","name":"PCAO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PCAO/1/pcao.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":633,"nb_individuals":0,"nb_properties":42,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PCL","name":"Provisional Cell Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PCL/1/pcl.owl","domain":null,"description":"Cell types that are provisionally defined by experimental techniques such as single cell transcriptomics rather than a straightforward & coherent set of properties.","documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":"https://github.com/obophenotype/provisional_cell_ontology","version":"2025-07-07","has_ontology_language":"OWL","nb_classes":37211,"nb_individuals":9213,"nb_properties":582,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PCMO","name":"PCMO","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PCMO/1/pcmo.owl","domain":null,"description":null,"documentation":null,"publication":null,"publications":null,"products":null,"taxon":null,"date_released":null,"date_created":null,"home_page":null,"version":null,"has_ontology_language":"OWL","nb_classes":20,"nb_individuals":201,"nb_properties":40,"max_depth":null,"max_children":null,"avg_children":null,"classifiable":null,"nb_inconsistent":null,"indexed":null,"md5sum":null}},{"acronym":"PCO","name":"Population and Community Ontology","status":"Classified","topics":null,"species":null,"submission":{"id":null,"submission_id":null,"download_url":"media/ontologies/PCO/1/pco.owl","domain":null,"description":"The Population and Community Ontology (PCO) describes material entities, qualities, and processes related to collections of interacting organisms such as populations and communities. 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