They do not travel high enough in the air to be counted as aircraft, and they are not immersed deeply enough in the water to be regarded as ships.
Azihambeli phezulu emoyeni ngokwaneleyo ukuze zibalelwe ekuthini zinqwelo-moya, kwaye azintywili ngokunzulu ngokwaneleyo emanzini ukuze zibalelwe ekuthini ziinqanawa.