_:vb54627	<http://www.w3.org/2006/http#elementName>	"Sat, 26 Oct 2019 16:56:02 GMT" .
_:vb54627	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb54626	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#MessageHeader> .
_:vb54626	<http://www.w3.org/2006/http#fieldValue>	_:vb54627 .
_:vb54626	<http://www.w3.org/2006/http#fieldName>	<http://www.w3.org/2006/http-header#if-modified-since> .