@prefix rdfs:	<http://www.w3.org/2000/01/rdf-schema#> .
@prefix ns1:	<http://www.openlinksw.com/schemas/opengraph#> .
@prefix vcard:	<http://www.w3.org/2001/vcard-rdf/3.0#> .
ns1:has_photo	rdfs:subPropertyOf	vcard:PHOTO .
@prefix foaf:	<http://xmlns.com/foaf/0.1/> .
ns1:has_photo	rdfs:subPropertyOf	foaf:img .