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: Conditions of water pollution vary from year to year, but observe the general rule of thumb of avoiding a dip in the immediate vicinity of major industrialized port  Genoa, Naples, and Palermo. Choices: 1. Water pollution conditions are the same every year. 2. You should avoid swimming near big industrial ports. 3. Swimming near industrial ports is very dangerous.

3