_:vb41881	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/http/forum.7ail.net/threads/%D8%A7%D9%81%D8%B6%D9%84-%D8%B4%D8%B1%D9%83%D8%A7%D8%AA-%D8%A7%D9%84%D8%AE%D8%AF%D9%85%D8%A7%D8%AA-%D8%A8%D8%AC%D8%AF%D8%A9-%D9%88-%D9%85%D9%83%D8%A9.110435/> .
_:vb41881	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb41881	<http://www.w3.org/2006/http#elementName>	"OpenLink Virtuoso RDF crawler" .