PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • You still need to use a third-party vendor if you want to track other campaigns outside of Google AdWords such as Bing, Facebook, Twitter, LinkedIn, email, display, or offline ads including TV or radio.
http://www.w3.org/ns/prov#wasQuotedFrom
  • searchenginewatch.com