_:b2556232	<http://www.w3.org/2006/http#fieldName>	<http://www.w3.org/2006/http-header#if-modified-since> .
_:b2556232	<http://www.w3.org/2006/http#fieldValue>	_:b2556259 .
_:b2556232	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#MessageHeader> .
_:b2556259	<http://www.w3.org/2006/http#elementName>	"Thu, 16 Jan 2020 14:26:09 GMT" .
_:b2556259	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .