PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There becomes a problem, however, when there is a sudden, rapid and sustainable movement in a currency's valuation, which makes it impractical, or even impossible, for a central bank to immediately respond via interest rates, used to quickly correct the movement.
http://www.w3.org/ns/prov#wasQuotedFrom
  • investopedia.com