PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Techniques used to recover residual petroleum resources left behind in depleted oil reservoirs through the injection of water and gases, such as carbon dioxide, into the oil-bearing geologic strata.
http://www.w3.org/ns/prov#wasQuotedFrom
  • americaspower.org