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: Bacteria can cause food to spoil. 
Question: What causes food to spoil?

Output: Bacteria.


Input: Consider Input: Fact: a greenhouse protects plants from death. 
Question: What does a greenhouse protect plants from?

Output: death.


Input: Consider Input: Fact: Mitosis is how organisms grow and repair themselves. 
Question: How are organisms able to grow and repair their cells?


Output: mitosis.