_:vb54657	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb54657	<http://www.w3.org/2006/http#elementName>	"public, max-age=1800, must-revalidate, proxy-revalidate" .