(subclass UnpoweredVehicle Vehicle) | Transportation.kif 1783-1783 | Unpowered vehicle is a subclass of vehicle |
(subclass Trailer UnpoweredVehicle) | Transportation.kif 1821-1821 | Trailer is a subclass of unpowered vehicle |
(subclass Wagon UnpoweredVehicle) | Transportation.kif 1847-1847 | Wagon is a subclass of unpowered vehicle |
(subclass GliderPlane UnpoweredVehicle) | Transportation.kif 2594-2594 | Glider plane is a subclass of unpowered vehicle |