PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There???s no soot to create smog, no hydrocarbons or nitrogen oxides that would combine to form ozone, no poisonous carbon monoxide and, best of all, no carbon dioxide or other greenhouse gases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • slate.com