PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Continued research and development of renewable and alternative sources of energy such as solar, wind, geothermal, and hydrogen fuel cell power.
http://www.w3.org/ns/prov#wasQuotedFrom
  • crf-usa.org