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:  toward a better disease model. Choices:  1. The disease model can be improved with better data. 2. The disease model is perfect. 3. The disease model can be improved.

2