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: heating salt water leaves the salt on the surface. 
Question: heating salt water leaves the salt where?
Example Output: on the surface.

Example Input: Fact: the second-largest invertebrate group reproduce sexually. 
Question: the second-largest invertebrate group reproduce how?
Example Output:
sexually.