_:vb74823	<http://www.w3.org/2006/http#elementName>	"Sat, 26 Oct 2019 07:14:50 GMT" .
_:vb74822	<http://www.w3.org/2006/http#fieldName>	<http://www.w3.org/2006/http-header#if-modified-since> .
_:vb74822	<http://www.w3.org/2006/http#fieldValue>	_:vb74823 .
_:vb74823	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb74822	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#MessageHeader> .