PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Types of robots built on the human model are the most challenging to create due to the fact that simulating how human beings walk is a very difficult task to do for a machine, as well as how human beings see the world or understand language so that they can effectively interact with each other.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeek.com