<http://www.w3.org/2006/http>	<http://xmlns.com/foaf/0.1/topic>	_:vb50396723 .
_:vb50396723	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	_:vb50396722 .
<http://www.w3.org/2006/http#MessageHeader>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	_:vb50396723 .
_:vb50396723	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	_:vb50396720 .
_:vb50396723	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/entity/http/www.w3.org/2006/http> .