PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Electronic currencies will serve to facilitate trade, investment, production, and employment if they are used for buying and selling goods rather than mainly for speculation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • progress.org