an animal / bacterium requires oxygen for survival / to breathe
mammal is air_breathing_vertebrate. mammal is not air_breathing_vertebrate. sivapithecus is mammal. snorkel is not breathing_device. all_mammals_breathe_air_and has lungs oxygen_therapy is oxygen. oxygen_mask is breathing_device. dinosaur is air_breathing_vertebrate. snorkel is breathing_device. oxygen is necessity_for_life.