PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Chemical methods of disassociating the hydrates involve pumping materials such as salt or methanol into the reservoirs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • petroleumnews.com