PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The engine is a single cylinder, double acting type with a bore of 1?????? and stroke of 2???.
http://www.w3.org/ns/prov#wasQuotedFrom
  • steamboat.com.au