(subclass Helicopter Aircraft) | Mid-level-ontology.kif 17853-17853 | Helicopter is a subclass of aircraft |
(subclass CH53E Helicopter) | MilitaryDevices.kif 1767-1767 | C h53 e is a subclass of helicopter |
(subclass CH46D Helicopter) | MilitaryDevices.kif 1828-1828 | C h46 d is a subclass of helicopter |
(subclass AH1 Helicopter) | MilitaryDevices.kif 1889-1889 | A h1 is a subclass of helicopter |