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: During World War II, the rapid advance of the German forces through mainland Greece in 1941 forced the Allies to retreat to Crete. Choices: 1. Germany advanced rapidly through Greece in World War II. 2. The Allies were able to establish complex mortar fields to defend Crete. 3. Germany was never able to penetrate Greece.

2