PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For some well conditions, a gas such as nitrogen or carbon dioxide may be used to directly force formation fluids back into reservoir 100.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com