PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In contrast, hydrogen as a storage medium for electricity from intermittent power sources such as wind is a technology whose time has come.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cleanenergywonk.com