@prefix rdf: . @prefix ns1: . _:vb792211 rdf:first ns1:qualifiedPrimarySource ; rdf:rest _:vb792212 . @prefix pwdr: . @prefix ns3: . _:vb792211 pwdr:describedby ns3:prov . _:vb792212 rdf:first ns1:entity ; rdf:rest rdf:nil ; pwdr:describedby ns3:prov .