PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The kind of smog that is most prevalent in the US and other industrialized nations is photochemical smog.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ftexploring.com