PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The raw liquids are divided into natural gas and natural gas liquids such as ethane, propane, butane and natural gasoline.
http://www.w3.org/ns/prov#wasQuotedFrom
  • salemnews.net