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: Digestion is the process of breaking down food proteins into energy or heat. 
Question: What is the process of breaking down food proteins into energy or heat?
Example Output: digestion.

Example Input: Fact: Sporangia produce spores that develop into green, photosynthetic gametophytes. 
Question: Sporangia produce spores that develop into what gametophytes?
Example Output: green photosynthetic.

Example Input: Fact: Changes in size are faster during infancy than during puberty. 
Question: What are faster during infancy than during puberty?
Example Output:
changes in size.