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: running requires a lot of calories. 
Question: What does the body use while running?

Output: Calories.


Input: Consider Input: Fact: A fertilized egg can create an offspring if it's carried until birth. 
Question: When does a fertilized egg become an offspring?

Output: When it's born.


Input: Consider Input: Fact: plant cells have numerous organelles. 
Question: What are numerous in plant cells?


Output: eukyarotes.