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: combining an egg and sperm increases genetic diversity. 
Question: what increases genetic diversity?

Output: combining egg and sperm.


Input: Consider Input: Fact: diatomes have varied life cycles. 
Question: what have varied life cycles?

Output: diatomes.


Input: Consider Input: Fact: oxygen and water will cause metal to turn orange. 
Question: What will cause metal to turn orange?


Output: Exposure to oxygen and water.