PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These radio waves are a form of electromagnetic radiation, much like the energy that heats your microwave oven or is used for radar.
http://www.w3.org/ns/prov#wasQuotedFrom
  • webmd.com