<http://webisa.webdatacommons.org/100873625> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/100873625> <http://www.w3.org/ns/prov#wasQuotedFrom> <blogspot.com> . <http://webisa.webdatacommons.org/100873625> <http://www.w3.org/ns/prov#value> "This form has made previously uneconomic deposits of oil in such places as North Dakota profitable to extract." . <http://webisa.webdatacommons.org/prov/117003997> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/100873625> .