PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The global currency exchange (called the FX market) discovers the price of currencies by supply and demand, just like the markets for wheat, oil, lumber or other commodities.
http://www.w3.org/ns/prov#wasQuotedFrom
  • zerohedge.com