PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Competitors such as Google, Facebook, and Yahoo give advertisers a much deeper level of insight, though some say Apple???s data is still the most valuable.
http://www.w3.org/ns/prov#wasQuotedFrom
  • modmyi.com