Normal breathing may undergo a blockage.Logical formLearned from2 sentences. Normal breathing can be during sleep.Logical formLearned from2 sentences. A preference can be for a (breathing apparatus).Logical formLearned from2 sentences. A (breathing apparatus) can be comfortable.Logical formLearned from2 sentences. A maker can be constituted-of-or-filled-with (breathing equipment).Logical formLearned from2 sentences. Some persons may suffer (breathing difficulties).Logical formLearned from2 sentences. A device may divert air from a (breathing tube).Logical formLearned from2 sentences. Risings may evoke a breathing of a sleeper.Logical formLearned from2 sentences. Breathing may lead to a conclusion.Logical formLearned from2 sentences. A breathing can be fitful.Logical formLearned from2 sentences. Rhythm may undergo a breathing.Logical formLearned from2 sentences. A need can be for deep breathing.Logical formLearned from2 sentences. A person may warm_up by doing some (breathing exercises).Logical formLearned from2 sentences. (Food allergies) may cause (difficulty breathing).Logical formLearned from2 sentences. (Difficulty breathing) may swell of a mouth.Logical formLearned from2 sentences.