PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But Google Plus still hasn't proven it can become as much of a magnet as Facebook, largely because people had already established their online social circles at Facebook.Google Plus has built up a broad swath of accountholders since its introduction nearly two years ago, mainly because so many people already had set up Google logins while using the company's Gmail or other services.
http://www.w3.org/ns/prov#wasQuotedFrom
  • federalnewsradio.com