PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This cleaning removes the impurities such as carbons, oxides and the like that are present on the surfaces of the emitter and reservoir.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com