PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • By way of example, none of the aforementioned prior art patents discloses a writing instrument which uses the preferred planar configuration of the present invention which provides edges and surfaces that are especially advantageous to individuals suffering from a variety of disabilities, such as arthritis, which precludes tightly gripping a conventional writing instrument.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com