<http://webisa.webdatacommons.org/9850064> <http://www.w3.org/ns/prov#wasQuotedFrom> <stackexchange.com> . <http://webisa.webdatacommons.org/9850064> <http://www.w3.org/ns/prov#value> "Most other specialisations (such as Heavy Airplane or Glider) are at Piloting-4, or -5 for such things as Helicopters." . <http://webisa.webdatacommons.org/9850064> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/475451524> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/9850064> .