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: growth occurs on the windward side of the mountain range. 
Question: What occurs on the windward side of a mountain range?
Example Output: growth.

Example Input: Fact: The flu is not affected by antibiotics, only a vaccine. 
Question: What affects the flu?
Example Output: Vaccines.

Example Input: Fact: Biomolecules are used to repair cells by the human body. 
Question: are used to repair cells by the human body?
Example Output:
Biomolecules.