Mechanism may involve breathing.Logical formLearned from2 sentences. Breathing can be by lungs.Logical formLearned from2 sentences. Equipment may utilize (breathing gas).Logical formLearned from2 sentences. Humans may withstand exposure to (breathing gases).Logical formLearned from2 sentences. (Breathing gases) may be used.Logical formLearned from2 sentences. A breathing may pertain-to a diver.Logical formLearned from2 sentences. (Breathing sounds) may pertain-to a diver.Logical formLearned from2 sentences. Breathing may undergo a promotion.Logical formLearned from2 sentences. (Breathing gases) can be compressed.Logical formLearned from2 sentences. (Breathing machines) may be developed.Logical formLearned from2 sentences. Rebreathers may deliver concentrations of (breathing gas).Logical formLearned from2 sentences. A style can be constituted-of-or-filled-with breathing.Logical formLearned from2 sentences. Lungs can be of importance to (breathing control).Logical formLearned from2 sentences. Water can be for breathing.Logical formLearned from2 sentences. A breathing can be a diacritical mark.Logical formLearned from2 sentences.