_:vb51712	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb51712	<http://www.w3.org/2006/http#elementName>	"no-store, no-cache, must-revalidate, post-check=0, pre-check=0" .