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: Robertson sees it as a tool to keep his complex as clean and safe as possible. Choices: 1. To Robert, it's an instrument that keeps his complex as clean and safe as possible, so he buys it every day. 2. To Robert, it's an instrument that keeps his complex very dirty.  3. To Robert, it's an instrument that keeps his complex as clean and safe as possible.

1