PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • GDP is a poor measure of actual economic activity, especially when compared using exchange rates instead of the more accurate but harder to pin down purchasing price parity.
http://www.w3.org/ns/prov#wasQuotedFrom
  • worldchanging.com