_:vb83404	<http://www.w3.org/2006/http#fieldName>	<http://www.w3.org/2006/http-header#if-modified-since> .
_:vb83405	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb83404	<http://www.w3.org/2006/http#fieldValue>	_:vb83405 .
_:vb83405	<http://www.w3.org/2006/http#elementName>	"Sun, 10 Nov 2019 12:42:09 GMT" .
_:vb83404	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#MessageHeader> .