user
YOU BREATH ME IN YOU BREATH ME OUT ITS THE ONLY WAY TO BREATHE SO DON'T EVEN POUT.  WHAT AM I?
A: sigh
B: take in water
C: answer is air
D: think of oxygen
E: travel
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>