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: memory cells help keep people from getting sick. 
Question: What helps keep people from getting sick?
Example Output: Memory cells.

Example Input: Fact: Heating with coal can cause air pollution. 
Question: Heating with coal can cause?
Example Output: air pollution.

Example Input: Fact: Seahorses are marine species. 
Question: What kind of species are seahorses?
Example Output:
marine.