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: Bulbs require electrical energy to see in darkness. 
Question: Bulbs produce electrical energy to what?
Example Output: see in darkness.

Example Input: Fact: Mineral graphite can pierce the skin surface. 
Question: What can pierce the skin surface?
Example Output: Mineral graphite.

Example Input: Fact: Potassium is important for an animal to survive. 
Question: What does potassium do for an animal?
Example Output:
Helps it survive.