PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Projection System The Client Architecture Using an iPhone to Work with Remote Projectors Apple's patent states that for other client input data, a touch device, such as a touch screen, may allow a user of a client device to press a finger on the presentation as displayed, and a corresponding marker/indicator may be added to appear in the presentation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • patentlyapple.com