PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Another aspect of the invention is an apparatus, including a central processing unit coupled to a memory, for efficiently accessing a node that contains a pointer to a NULL object in an object-oriented programming environment with statically typed variables.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com