PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, so far the endurance of the catalyst is a problem and the cost of a direct injected 2-stroke engine is similar to a 4-stroke engine.
http://www.w3.org/ns/prov#wasQuotedFrom
  • unep.org