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: do you think that's the main reason do you think the Choices:  1. Do you guess that is the main reason? 2. I do not want to know if you think that is the main reason.   3. I think that is the main reason.  

2