Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine the neutral choice based on your inference from the statement and your commonsense knowledge. The neutral choice is a sentence that neither agrees nor disagrees with the statement. Indicate your answer as '1', '2', or '3', corresponding to the choice number of the selected sentence. If sentence X agrees with sentence Y, one's correctness follows from the other one. If sentence X disagrees with sentence Y, they can not be correct at the same time.
Input: Statement: The increased ammonia demand from a multipollutant rule is estimated to increase to about 1,040,000 tons per year by 2020. Choices: 1. Ammonia demand is decreasing at a rapid rate. 2. Ammonia demand will increase three million tons a year by 2070. 3. Ammonia demand is guessed to increase by over a million tons per year by 2020.

2