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: - Dewatering system (settling tanks/vessels, hydrocyclones, and/or vacuum filters) - Stacking equipment  Choices: 1. Dewatering systems are not the only types of stacking equipment. 2. Dewatering systems consist of settling tanks, hydrocyclones and possibly vacuum filters. 3. Dewatering systems operate without the need of settling tanks.

1