PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • That???s good for utilities in California, which must obtain a third of their electricity from solar and other renewable sources by 2020.
http://www.w3.org/ns/prov#wasQuotedFrom
  • yoursun.com