PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • That is, no other forms of index numbers will enable us to say that when the quantity of money changes, the velocity of circulation and the Q's remaining the same, the index number of prices will vary proportionately.
http://www.w3.org/ns/prov#wasQuotedFrom
  • econlib.org