PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The natural gas liquids contain flammable substances, including butane and propane, and are used in the manufacture of plastics.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wuky.org