PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It can be run either as a ???forward??? auction, the familiar scenario in which a seller is the auctioneer and prospective buyers make competing bids, or as a ???reverse??? auction, in which the auctioneer is a buyer who takes bids from prospective vendors.
http://www.w3.org/ns/prov#wasQuotedFrom
  • auctionomics.com