Wikidata's ontology

In Wikidata, entities can have subclass of statements linking them to other entities. This creates a class polyhierarchy, a.k.a. an ontology.

The top-level class in Wikidata's class hierarchy is entity (superclass of all classes).

You can reconstruct the ontology of Wikidata by following the subclass of statements, starting from the entity class, as shown below.

Browse Wikidata's ontology

See also

• SNOMED CT RF2 to OWL - Convert SNOMED CT RF2 to OWL online.
• The RDF model of the Gene Ontology, demystified - An outline of the structure of the Gene Ontology RDF graph and ways to query it.
• Towards more linked lexicographical data: Lexemes on Wikidata - A glimpse into the meaning and other properties of words described with structured and linked data.
• OWL reasoning - Using OWL reasoning to infer new knowledge.
• The building blocks of OWL - What makes up OWL ontologies and how do they support logical inference?
• OWL Functional Syntax Parse Tree Viewer - View the parse tree of OWL Functional Syntax.
• How to query Wikidata using SPARQL in JavaScript - A guide to getting data from Wikidata using SPARQL in JavaScript.
• Data exploration on linked COVID-19 datasets - An overview of the available RDF datasets and discovery tools for COVID-19.