PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Also, alternative sources of power are often employed to produce electric power, such as solar-voltaic, thermal, wind, water and other power sources.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com