PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carbon dioxide is a heat-trapping gas; its properties can easily be measured in a lab (and I have done it myself).
http://www.w3.org/ns/prov#wasQuotedFrom
  • thinkprogress.org