PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The term energy exchanger used herein is to be understood in its most general sense and may include a direct user, such as, heating coils in floors, traffic routes (for example, bridges, ramps, etc.) or heating radiators and the like, but also heat exchangers and particularly heat pumps.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com