PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Simply called Google referrals, these new ads seem to be a cross between Google???s original referral ads (with Firefox, Google Pack, AdSense and AdWords) and a CPC ad, except users only get paid when a transaction is completed.
http://www.w3.org/ns/prov#wasQuotedFrom
  • blogherald.com