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: diatomes have varied life cycles. 
Question: what have varied life cycles?

Output: diatomes.


Input: Consider Input: Fact: Fish are covered with protection. 
Question: What are covered with protection?

Output: fish.


Input: Consider Input: Fact: irradiation can be used to extend the shelf life of food. 
Question: what can be used to extend the shelf life of food?


Output: irradiation.