PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A market is a metaphor, a reference to a medieval town where buyers and sellers would get together and haggle over price, resulting in market price where supply and demand are equalized.
http://www.w3.org/ns/prov#wasQuotedFrom
  • econtalk.org