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: Beavers cause ponds and lakes to form. 
Question: What can be the cause of lakes and ponds forming?
Example Output: beavers.

Example Input: Fact: The wind has a negative impact on the respiratory system. 
Question: The wind has a negative impact on what?
Example Output: the respiratory system.

Example Input: Fact: lobsters have a life cycle with sexual reproduction. 
Question: what have a life cycle with sexual reproduction?
Example Output:
lobsters.