PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This involves the use of electrolysis to create hydrogen and methane from extra energy generated by renewable plants such as wind or solar.
http://www.w3.org/ns/prov#wasQuotedFrom
  • investorideas.com