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: Mammals generate heat mainly by burning calories. 
Question: Mammals generate heat mainly by what?
Example Output: burning calories.

Example Input: Fact: cows make nutritious fluid. 
Question: What do cows make?
Example Output: nutritious fluid.

Example Input: Fact: Icebergs are freezing cold. 
Question: What temperature are icebergs?
Example Output:
Freezing cold.