Class with symmetric object property.
Ontology(<http://example.com/ontology/Unnamed1> Annotation(rdfs:label "Symmetric"^^xsd:string) Declaration(Class(:Person)) Declaration(Class(:Spouse)) Declaration(ObjectProperty(:hasSpouse)) ############################ # Object Properties ############################ # Object Property: :hasSpouse (has spouse) AnnotationAssertion(rdfs:label :hasSpouse "has spouse"^^xsd:string) SymmetricObjectProperty(:hasSpouse) ObjectPropertyDomain(:hasSpouse :Person) ObjectPropertyRange(:hasSpouse :Spouse) )