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: Although the NIPA federal surplus or deficit is arithmetically similar to the federal unified budget surplus or deficit, there are some conceptual differences. Choices: 1. There are no differences between the NIPA federal surplus and the federal unified budget surplus. 2. There are differences between the NIPA federal surplus and the federal unified budget surplus. 3. The NIPA federal surplus is more commonly used by authorities.

3