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 idiots must be trying to reach the sky with their pyramid. Choices: 1. The wise men were trying to dig a well. 2. The fools must be trying to build a pyramid to the sky. 3. The idiots did not know that this was impossible.

3