_:vb50844819	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	<http://purl.org/ontology/bibo/Document> .
_:vb50844819	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/entity/http/purl.org/ontology/bibo/Book> .
_:vb50844819	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil> .