A (breathing mask) may cover a mouth.Logical formLearned from2 sentences. A pair of (breathing organs) may be modified.Logical formLearned from2 sentences. A (bailout cylinder) may hold (breathing gas).Logical formLearned from2 sentences. A pause can be in breathing.Logical formLearned from2 sentences. Plants may undergo a breathing.Logical formLearned from2 sentences. Advancements can be in breathing.Logical formLearned from2 sentences. Exposure can be to (breathing gases).Logical formLearned from2 sentences. Nature may undergo a breathing.Logical formLearned from2 sentences. (Pressure support) may improve oxygenation of breathing.Logical formLearned from2 sentences. (Excretion buildup) can be in (breathing medias).Logical formLearned from2 sentences. Breathing can be a third album.Logical formLearned from2 sentences. Breathing may undergo trials.Logical formLearned from2 sentences. A fetus can be capable of breathing.Logical formLearned from2 sentences. (Breathing exercises) can be beneficial in improving (chest wall mobility).Logical formLearned from2 sentences. A breathing can be a life.Logical formLearned from2 sentences.