@prefix rdfs: . @prefix ns1: . @prefix vcard2006: . ns1:id rdfs:subPropertyOf vcard2006:UID . @prefix owl: . @prefix dc: . ns1:id owl:equivalentProperty dc:identifier . @prefix sioc: . ns1:id owl:equivalentProperty sioc:id . @prefix bibo: . ns1:id owl:equivalentProperty bibo:identifier . @prefix dct: . ns1:id owl:equivalentProperty dct:identifier .