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: Richard Longabaugh commented on how much remains unknown about what motivates patients to change their use of alcohol. Choices: 1. Richard stated that there's a lot that isn't known about how patients are motivated to change their use of alchohol. 2. Richard stated that we know everything there is to know about the motivations of patients that change their use of alcohol. 3. Richard believes that there is not enough funding for studies on ex-alcoholics, which is why we don't know much about their motivations to change.

3