PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • And, again, utilities will have sources such as hydro and wind that can be used when the Sun is down.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cleantechnica.com