_:vb53557	<http://www.w3.org/2006/http#fieldValue>	_:vb53558 .
_:vb53558	<http://www.w3.org/2006/http#elementName>	"Mon, 28 Oct 2019 00:14:28 GMT" .
_:vb53558	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:vb53557	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#MessageHeader> .
_:vb53557	<http://www.w3.org/2006/http#fieldName>	<http://www.w3.org/2006/http-header#if-modified-since> .