(subclass DisplacementHullWaterVehicle WaterVehicle) | Transportation.kif 2297-2297 | DisplacementHullWaterVehicle e' uma sub-classe de WaterVehicle |
(subclass Ship DisplacementHullWaterVehicle) | Transportation.kif 2303-2303 | Ship e' uma sub-classe de DisplacementHullWaterVehicle |