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: Food can be cooked on metal. 
Question: Which surface can food be cooked on?

Output: Metal.


Input: Consider Input: Fact: birds fly using muscles in the chest. 
Question: What do birds use to fly?

Output: Muscles in the chest.


Input: Consider Input: Fact: Patch reef provide food and shelter to many ocean organisms. 
Question: Where is the name of a habitat where a variety of ocean organisms often seek food and shelter?


Output: patch reefs.