PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Such technology is seen as essential to integrate wind and solar into the grid, as those sources do not produce energy 24/7.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cnn.com