(subclass VehicleSafetyDevice SafetyDevice) | Cars.kif 3383-3383 | Vehicle safety device is a subclass of safety device |
(subclass AutoAirbag VehicleSafetyDevice) | Cars.kif 3632-3632 | Airbag is a subclass of vehicle safety device |
(subclass SeatBelt VehicleSafetyDevice) | Cars.kif 3666-3666 | Seat belt is a subclass of vehicle safety device |