Definition: In this task, you're given a statement, and three sentences as choices. Your job is to determine which sentence clearly disagrees with the statement. Indicate your answer as '1', '2', or '3' corresponding to the choice number of the selected sentence.
Input: Statement: I WAS thinking of something, confessed Tuppence. Choices:  1. Tuppence admitted that she was thinking of someone. 2. Tuppence wasn't thinking of anyone at all. 3. Tuppence didn't know who she was thinking of.

2