PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The heat exchange fluid may comprise a liquid, of which water is an example, or a gas, of which air is an example.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com