PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • According to Holmes, the price movement of commodities ???is historically both seasonal and cyclical,??? but the price is also affected by government policies and well as other factors, and acts of God, such as earthquakes and tsunamis.
http://www.w3.org/ns/prov#wasQuotedFrom
  • marketwatch.com