dini-ag-kim/holding-ontology — pull request #28 by cKlee (2014-03-14 11:23:25+00:00)
Title: new holding:Item

holding:Item is now a owl:unionOf bf:HeldItem, frbr:Item and rdac:Item. owl:unionOf means 'OR'. The holding ontology suggests to use one of the three classes. Thus holding:Item is just a convenience to prevent the repetition of an anonymous class.