PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • We know how to do coal and natural gas powered electricity generation --- we have a lot of learning to do about renewables such as geothermal.
http://www.w3.org/ns/prov#wasQuotedFrom
  • blogspot.com