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: Ca'daan saw it was true. Choices:  1. He knew it was all lies. 2. He knew it to be true. 3. He was not sure at first.

1