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: The building blocks of FACS are 46 action units  (AUs) such as a wrinkling of the nose, a puffing of the cheeks, dilation of the nostrils, squinting, and so on. Choices:  1. There are forty-six action units, like squinting and wrinkling the nose, that comprise the basic elements of FACS. 2. The objective of FACS is to tell when someone is lying. 3. The action units of FACS involve only body movements, not facial expressions like squinting.

3