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: Scraping oneself on surfaces or things that have germs may cause infection. 
Question: Which of the following may cause infection?
Example Output: Germy surfaces.

Example Input: Fact: The bonds of that which when heavy is Deuterium cause water to expand when it freezes. 
Question: The bonds of that which when heavy is Deuterium cause what to expand when it freezes?
Example Output: water.

Example Input: Fact: Smog is made up of carbon particles. 
Question: What is smog made up of?
Example Output:
Carbon Particles.