http://www.w3.org/2000/01/rdf-schema#isDefinedBy

Property Object
Type rdf:Property
See also http://www.w3.org/2000/01/rdf-schema#
rdfs:isDefinedBy http://www.w3.org/2000/01/rdf-schema#
Subject Property
Property partition: http://www.w3.org/2000/01/rdf-schema#isDefinedBy void:property