<http://webisa.webdatacommons.org/138381474> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.de> . <http://webisa.webdatacommons.org/138381474> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/138381474> <http://www.w3.org/ns/prov#value> "This is qualified because operations such as READ are idempotent but operations such as REMOVE are not." . <http://webisa.webdatacommons.org/prov/287219459> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/138381474> .