You will be given a definition of a task first, then some input of the task.
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.

Statement: Because, so long as the evidence against him was vague and intangible, it was very hard to disprove. Choices: 1. Finding the truth is a long and arduous journey. 2. The evidence is circumstantial enough to make guilt believable, but he could also be completely innocent. 3. Proving your guilt or innocence is very easy to do when someone makes a charge against you.
Output:
1