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: Populations of the cause of influenza do not grow through cell division because they are not cells. 
Question: The cause of what doesn't grow by cell division?
Example Output: Influenza.

Example Input: Fact: roundworms may be free-living or live off a host. 
Question: aside from free-living, where else can roundworms exist?
Example Output: live off a host.

Example Input: Fact: hurricanes form due to unequal heating of Earth's surface by the Sun. 
Question: What forms due to unequal heating of Earth's surface by the Sun?
Example Output:
hurricanes.