PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Thus, e.g., U.S. Pat. No. 2,969,547 of Dye discloses such a head covering.The Dye patent disclosed that Young people, especially children, are prone to head injuries during ordinary forms of play and physical exercise.
http://www.w3.org/ns/prov#wasQuotedFrom
  • patentgenius.com