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: This retirement income definition differs somewhat from the NIPA personal income definition discussed in Q1. Choices: 1. A NIPA personal income definition was mentioned in Q1, but that is different to this retirement income definition. 2. This definition of retirement income is identical to the one discussed in Q1. 3. Retirement income can be defined in up to 10 different ways.

3