_:vb52728 "OpenLink Virtuoso RDF crawler" . _:vb52732 _:vb52727 . _:vb52729 . _:vb52727 _:vb52728 . _:vb52731 . _:vb52727 . _:vb52728 . _:vb52730 "application/rdf+xml; q=1.0, text/rdf+n3; q=0.9, application/rdf+turtle; q=0.5, application/x-turtle; q=0.6, application/turtle; q=0.5, text/turtle; q=1.0, application/xml; q=0.2, */*; q=0.1" . _:vb52732 _:vb52731 . _:vb52731 _:vb52729 . _:vb52730 . _:vb52729 . _:vb52729 _:vb52730 . _:vb52727 .