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: Constantine added new city walls, following a plan he claimed to have been given by Christ in a vision, and commissioned a grand central forum decorated with a triumphal column as well as several other monuments. Choices: 1. Constantine's plan to add new walls to the city was inspired by a religious vision. 2. Constantine did not build anything in the city. 3. The new city walls made it safe from invasion.

3