PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Steam stripping is a technique which actually recovers the solvent, but it too requires special equipment and heat energy to make the steam.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com