_:vb51990	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb51990	<http://www.w3.org/2006/http#elementName>	"OpenLink Virtuoso RDF crawler" .
_:vb51989	<http://www.w3.org/2006/http#fieldName>	<http://www.w3.org/2006/http-header#user-agent> .
_:vb51990	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/http/gianneli.eu/> .
_:vb51989	<http://www.w3.org/2006/http#fieldValue>	_:vb51990 .
_:vb51989	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#MessageHeader> .
_:vb51989	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/http/gianneli.eu/> .