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:  Controlling SO2;  A Review of Technologies Choices:  1. There is no method with which SO2 can be controlled. 2. SO2 can be controlled. 3. SO2 can be controlled through give different technologies.

1