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: it was discuss air pollution causes of it and cures i was going oh well Choices:  1. The discussion had nothing to do with the causes of air pollution.   2. The discussion was about the causes and remedies of air pollution.   3. We discussed that not all air pollution is man made.  

1