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: A thing arranged in clusters mostly contain instructions for a single protein. 
Question: How often does a thing arranged in clusters contain instructions for a single protein?
Example Output: mostly.

Example Input: Fact: Populations of the cause of influenza do not grow through cell division because they are not cells. 
Question: The cause of what doesn't grow by cell division?
Example Output: Influenza.

Example Input: Fact: being preserved under many layers changes vegetation into peat through extreme heat and pressure. 
Question: being preserved under many layers changes vegetation into peat through extreme what?
Example Output:
heat and pressure.