PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Twitter has now removed sourcing on individual tweets accessed on the web that used to indicate which clients or apps were used to publish the tweet, such as Twitter for iPhone, the web, or Tweetbot for iOS. A Twitter spokesperson said the change, which had already been implemented on mobile, is to ???simplify??? the information being presented, but it comes as Twitter cracks down on external use
http://www.w3.org/ns/prov#wasQuotedFrom
  • gigaom.com