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: However, CBO has pointed out that the recent burst in productivity may prove temporary if the new economy turns out to be just a flash in the pan. Choices: 1. CBO has pointed out that the recent burst in productivity may prove temporary 2. CBO has pointed out that the recent burst of flavor in his coffee was very tasty 3. CBO has pointed out that the recent burst in productivity may prove permanent

2