PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A shorter valve allows the builder to "sink the valves to regain clearance, without creating excessive valves stem protrusion, poor rocker geometry, and other problems associated with excessive valve stem protrusion.
http://www.w3.org/ns/prov#wasQuotedFrom
  • kpmivalvetrain.com