@prefix rdf: . @prefix http-voc: . _:vb356666 rdf:type http-voc:HeaderElement . @prefix pwdr: . _:vb356666 pwdr:describedby . @prefix ns3: . _:vb356666 pwdr:describedby ns3:sparql . @prefix ns4: . _:vb356666 pwdr:describedby ns4:sparql . @prefix ns5: . _:vb356666 pwdr:describedby ns5:sparql ; http-voc:elementName "Keep-Alive" . _:vb356750 rdf:type http-voc:MessageHeader ; pwdr:describedby ns5:sparql , , ns3:sparql , ns4:sparql . @prefix ns6: . _:vb356750 http-voc:fieldName ns6:connection ; http-voc:fieldValue _:vb356666 .