PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As any economist knows, you can not let companies exploit externalities, such as pollution, if you want to create a real free market.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cnn.com