PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When the costs come down on wind, solar and other green energy sources to match the costs of existing sources, they will become a larger part of our energy mix.
http://www.w3.org/ns/prov#wasQuotedFrom
  • annarbor.com