| (subclass AmphibiousVehicle LandVehicle) | MilitaryDevices.kif 2019-2019 | Amphibious vehicle is a subclass of land vehicle |
| (subclass AmphibiousVehicle WaterVehicle) | MilitaryDevices.kif 2020-2020 | Amphibious vehicle is a subclass of water vehicle |
| (subclass LAV25 AmphibiousVehicle) | MilitaryDevices.kif 1521-1521 | LAV25 is a subclass of amphibious vehicle |
| (subclass AAV AmphibiousVehicle) | MilitaryDevices.kif 1647-1647 | Amphibious Assault Vehicle is a subclass of amphibious vehicle |
| (subclass LCAC AmphibiousVehicle) | MilitaryDevices.kif 1944-1944 | LCAC is a subclass of amphibious vehicle |
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