PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Solar energy is the most abundant resource that should be tapped, and increased cost will lead to more research and development.
http://www.w3.org/ns/prov#wasQuotedFrom
  • globalwarmingisreal.com