@prefix ex: <http://example.org/ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

_:rdfs01 a owl:Ontology .
 
ex:a a owl:NamedIndividual .
ex:c a owl:NamedIndividual .
ex:b1 a owl:ObjectProperty .
ex:b2 a owl:ObjectProperty .

ex:a ex:b1 ex:c .
ex:b1 rdfs:subPropertyOf ex:b2 .

