_:vb44722	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb44722	<http://www.w3.org/2006/http#elementName>	"Upgrade, Keep-Alive" .
_:vb44722	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/http/www.noorfatema.top/vb/showthread.php?t=140841&highlight=%E3%DF%C7%DD%CD%C9+%CD%D4%D1%C7%CA> .