PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The invention disclosed herein relates to electronic delivery of documents exchangeable for value (goods and/or services) such as counterfeit-resistant admission tickets, gift certificates, coupons, vouchers and other documents directly to a location designated by the ordering party over an open network, such as the Internet or the telephone system.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com