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: Tropical cyclones convert heat energy into mechanical energy. 
Question: What converts heat energy into mechanical energy?

Output: tropical cyclones.


Input: Consider Input: Fact: The things that are the smallest agents of disease are usually considered to be nonliving. 
Question: The things that are the smallest agents of disease are usually considered to be what?

Output: nonliving.


Input: Consider Input: Fact: monkeys conserve body heat with their hair or fur. 
Question: what conserves body heat with their hair or fur?


Output: monkeys.