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 main effect of this law has not been to decrease insurance claims, but to discourage physicians from screening for alcohol problems. Choices: 1. A secondary effect of the law has been to encourage physicians to write less prescriptions. 2. The main effect of this law is to decrease insurance claims. 3. The main effect of the law has been to discourage physicians from screening for alcohol problems.

1