PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Cost per kilowatt hour is difficult to calculate for wind and other sources and many experts disagree on the true cost of each form of energy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • partselect.com