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: The formation of more mitochondria increases a body's strength. 
Question: The formation of more mitochondia does what?
Example Output: increases a body's strength.

Example Input: Fact: Fanning a fire helps it continue to burn. 
Question: What helps a fire continue to burn?
Example Output: fanning.

Example Input: Fact: Bioterrorism is the spread of pathogens. 
Question: What does bioterrorism spread?
Example Output:
Pathogens.