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 suppose you'll believe a Professor of Astronomy knows what--"   Choices:  1. I figure you will have confidence in the abilities of a professor.  2. I assume that you will not believe anyone but yourself.  3. I guess you will trust a Professor of Astronomy. 

2