Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

Example Input: Fact: Chemical weathering causes FE in rock to oxidize. 
Question: Chemical weathering causes what in rock to oxidize?
Example Output: Fe.

Example Input: Fact: an automobile engine transforms chemical energy into sound. 
Question: an automobile engine cn transforms chemical energy into?
Example Output: sound.

Example Input: Fact: Blood pH may become unbalanced if Someone Is Hyperventilating. 
Question: Blood pH may become unbalanced if someone is?
Example Output:
hyperventilating.