PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Eventually though, because gold is a limited commodity, being tied to the gold standard began to seriously impinge upon the US economy so, in 1971 President Nixon, with the so-called Nixon Shock, took the US out of Bretton Woods and off the gold standard.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dailykos.com