About: http://webisa.webdatacommons.org/153541589

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	At this time, and while various oil recovery approaches are available, such are mainly time consuming and costly in actual practice.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com