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: the key cells involved in the immune response are produced in the bone marrow. 
Question: where are the key cells involved in the immune response produced in?
Example Output: bone marrow.

Example Input: Fact: air is required for breathing. 
Question: What is required for breathing?
Example Output: air.

Example Input: Fact: Frogs make sounds with the larynx which is in the throat. 
Question: Where is the larynx located?
Example Output:
in the throat.