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 evaporation of sweat occurs when a body is hot. 
Question: The evaporation of sweat occurs when what thing is hot?
Example Output: body.

Example Input: Fact: Toyota causes pollution. 
Question: What causes pollution?
Example Output: Toyota.

Example Input: Fact: Single-celled organisms in soil convert atmospheric nitrogen into a form usable by plants. 
Question: What in soil converts atmospheric nitrogen into a form usable by plants?
Example Output:
single-celled organisms.