_:vb50850987	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	<http://purl.org/net/provenance/ns#DataItem> .
<http://purl.org/net/provenance/ns.rdf>	<http://xmlns.com/foaf/0.1/topic>	_:vb50850987 .
_:vb50850987	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/entity/http/purl.org/net/provenance/ns.rdf> .
_:vb50850987	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	_:vb50850986 .
_:vb50850985	<http://www.w3.org/2002/07/owl#unionOf>	_:vb50850987 .