@prefix rdf: . @prefix http-voc: . _:vb495169 rdf:type http-voc:MessageHeader . @prefix pwdr: . @prefix ns3: . _:vb495169 pwdr:describedby ns3:db933fc5f7152283119360b8bf0db9e7c27325e9 . @prefix ns4: . _:vb495169 pwdr:describedby ns4:sparql . @prefix ns5: . _:vb495169 pwdr:describedby ns5:sparql . @prefix ns6: . _:vb495169 pwdr:describedby ns6:sparql . @prefix ns7: . _:vb495169 http-voc:fieldName ns7:connection ; http-voc:fieldValue _:vb495220 . _:vb495220 rdf:type http-voc:HeaderElement ; pwdr:describedby ns4:sparql , ns6:sparql , ns3:db933fc5f7152283119360b8bf0db9e7c27325e9 , ns5:sparql ; http-voc:elementName "Keep-Alive" .