PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • To that end, some companies are ramping up their research and development efforts in developing clean energy technologies including new solar, methanol and fuel cell systems.
http://www.w3.org/ns/prov#wasQuotedFrom
  • triplepundit.com