smother out is when people exhale oxygen oxygen from their mountain into the land
smother is not smoke. smothering is sadism. herd_animal is air_breathing_vertebrate. herd_animal is not air_breathing_vertebrate. smother is smoke. dinosaur is air_breathing_vertebrate. hyperventilation is breathing. if smother occurs then cover occurs. smothering is not sadism. dinosaur is not air_breathing_vertebrate.