PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The foregoing systems have a structure such that computer-understandable knowledge is accumulated in a form, such as a formula, a logical formula, a rule, a frame or a semantic network, which can be processed by a computer; and an inference process is performed with reference to the accumulated knowledge so as to automate problem solving which was previously performed by a human being.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com