PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The seller provides an invoice to the purchaser, or the purchaser presents a coupon, certificate, or other documentation to the seller, that identifies the price reduction or discount as a 3rd-party price reduction or discount.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisconsin.gov