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.

Input: Consider Input: Fact: Animals require alleles for warmth. 
Question: Animals require warmth as encoded on what?

Output: alleles.


Input: Consider Input: Fact: Some viruses can cause abnormal cell growth. 
Question: What be caused by some viruses?

Output: Abnormal cell growth.


Input: Consider Input: Fact: A soil sifter can be employed to separate out cutworm larvae. 
Question: Which tool is most helpful in collecting cutworm larvae?


Output: soil sifter.