PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At any rate, to obtain a measure of objective purchasing power is a step which may properly be taken by itself before any step more ambitious is considered.
http://www.w3.org/ns/prov#wasQuotedFrom
  • econlib.org