PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Generally, the letters emphasized the need for visual cues, labels, and other techniques to effectively distinguish natural results from paid ads.
http://www.w3.org/ns/prov#wasQuotedFrom
  • jdsupra.com