| (subclass RoadVehicle LandVehicle) | Mid-level-ontology.kif 3508-3508 | Road vehicle is a subclass of land vehicle |
| (subclass SelfPoweredRoadVehicle RoadVehicle) | Transportation.kif 1803-1803 | Self powered road vehicle is a subclass of road vehicle |
| (subclass Trailer RoadVehicle) | Transportation.kif 1820-1820 | Trailer is a subclass of road vehicle |
| (subclass TractorTrailer RoadVehicle) | Transportation.kif 1827-1827 | Tractor trailer is a subclass of road vehicle |
| (subclass MotorScooter RoadVehicle) | Transportation.kif 1885-1885 | Motor scooter is a subclass of road vehicle |
| (subclass EmergencyRoadVehicle RoadVehicle) | Transportation.kif 1892-1892 | Emergency road vehicle is a subclass of road vehicle |
| (subclass MilitaryTank RoadVehicle) | Military.kif 146-146 | Military tank is a subclass of road vehicle |
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