Improvement can be in breathing.Logical formLearned from2 sentences. A breathing can be under water.Logical formLearned from2 sentences. A helmet can be for containing (breathing gases).Logical formLearned from2 sentences. Yoga may undergo (breathing exercises).Logical formLearned from2 sentences. A breathing can be reversed.Logical formLearned from2 sentences. A breathing may reach stillness.Logical formLearned from2 sentences. A breathing may pertain-to a pregnant woman.Logical formLearned from2 sentences. A breathing can be inefficient.Logical formLearned from2 sentences. A medulla may regulate breathing.Logical formLearned from2 sentences. A (breathing air) can be compressed.Logical formLearned from2 sentences. (Breathing patterns) may undergo a use.Logical formLearned from2 sentences. An (engine breathing) can be improved.Logical formLearned from2 sentences. A design may allow breathing.Logical formLearned from2 sentences. Children may experience breathing.Logical formLearned from2 sentences. Men may have (breathing sets).Logical formLearned from2 sentences.