if vehicle is parked then that vehicle is stationary
parking_road_vehicle is not motoring. parked_vehicle_state is self_powered_vehicle. car is not wheeled_vehicle. parking_road_vehicle is not positioning. motor_vehicle is land_vehicle. parked_vehicle_state is not self_powered_vehicle. maintenance_vehicle is not land_vehicle. wheeled_vehicle is not vehicle. parking_road_vehicle is motoring. motor_vehicle is not land_vehicle.