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: Roots grow away from a light source. 
Question: what grow away from a light source?
Example Output: roots.

Example Input: Fact: Distilling water removes harmful substances before drinking. 
Question: Distilling water removes what before people drink it?
Example Output: harmful substances.

Example Input: Fact: some beetles have complex social behaviors. 
Question: what have complex social behaviors?
Example Output:
beetles.