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: a mold spore has a negative impact on breathing. 
Question: A mold spore has a negative impact on what?
Example Output: breathing.

Example Input: Fact: Producers use unsaturated fatty acids to store energy. 
Question: What kind of organism uses unsaturated fatty acids to store energy?
Example Output: producers.

Example Input: Fact: Insects have a nervous system. 
Question: What has a nervous system?
Example Output:
insects.