What does <owl:Ontology rdf:about="xml:base"/> in an ontology mean?...

protege reflexive property usage...

How to infer isBrotherOf property between two individuals...

How can an individual in a OWL ontology be classified as an instance of A, if A is mutually exclusiv...

How to add a synonym for a concept in an existing ontology?...

How to determine where the problem is in an ontology from HermiT output...

Prevent dynamic owl:import in Jena OntModel...

SPARQL Query not returning depth...

Validating .ttl elements with rdflib...

I want to return a result in SPARQL only if a property exists and has a specified value...

Not getting the required output using Wordnet Synset's definition method...

Horst (pD*) compared to OWL2-RL...

OWL-API rename does not remove old owl:Thing subclass in reasoner...

How to clone a JENA OntModel to another with a different ModelSpec...

Protege 5: How can I infer a class membership of an individual through its data properties?...

SHACL/ShEX constraint to make a property to build a hierarchy (i.e. a tree)...

Defining DataRange Expression in Protege for a Data Type Property...

Is there a way to infer equivalence of two instances based on multiple asserted DataProperties...

sparql query to get all individual of specific class using data value...

Whats wrong with the FRBR RDF-Ontology? What does "Use of non-absolute IRI" mean?...

can not get my individuals from my ontology using search method in owlready python...

how to read information about ontology using owlready2...

Semantic web and ontologist books?...

OWL/Protege: Model inferred class of persons, who are not members of a group...

Best way to represent part-of (mereological) transitivity for OWL classes?...

Apache Jena - Is it possible to write to output the BASE directive?...

setTimeout does not work...

How do I assimilate to an individual the same data property n times...

Defining a subclass of owl:ObjectProperty with domains/range constraint...

What is the role of CWA and OWA in semantic web applications?...