_:vb50811431	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	<http://www.w3.org/2006/http-header#derived-from> .
<http://www.w3.org/2006/http-header>	<http://xmlns.com/foaf/0.1/topic>	_:vb50811431 .
_:vb50811431	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	_:vb50811430 .
_:vb50811431	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/entity/http/www.w3.org/2006/http-header> .
_:vb50811432	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	_:vb50811431 .