@prefix rdf: . @prefix ns1: . _:vb594675 rdf:first ns1:qualifiedInvalidation ; rdf:rest _:vb594676 . @prefix pwdr: . @prefix ns3: . _:vb594675 pwdr:describedby ns3:prov . _:vb594676 rdf:first ns1:activity ; rdf:rest rdf:nil ; pwdr:describedby ns3:prov .