PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ????????????????????????offer????????? In business, an offer is a proposal to sell or buy a specific product or service under specific conditions:a tender offer is an offer to buy company stock from existing stockholders under specific conditionsan offer price, or ask price, is the price a seller is willing to accept for a particular gooda special offer is a kind of sales promotion
http://www.w3.org/ns/prov#wasQuotedFrom
  • babylon.com