PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As the lines between types of media continue to blur, Google Audio Ads allows search marketers to use the skills they have developed in pure search to advertise in other media.
http://www.w3.org/ns/prov#wasQuotedFrom
  • searchenginewatch.com