PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Usually, the engine is being turned off, as it not only means less fuel burn, but also that baggage handlers and other ground crew can get to the plane way faster than if they had to wait for the engine to spool down, so it effectively also means a reduction in turnaround time.
http://www.w3.org/ns/prov#wasQuotedFrom
  • airliners.net