_:b2555292	<http://www.w3.org/2006/http#fieldName>	<http://www.w3.org/2006/http-header#tcn> .
_:b2555292	<http://www.w3.org/2006/http#fieldValue>	_:b2555319 .
_:b2555292	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#MessageHeader> .
_:b2555319	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2006/http#HeaderElement> .
_:b2555319	<http://www.w3.org/2006/http#elementName>	"choice" .