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: Both FGD and ACI require a substantial amount of material (limestone and AC, respectively) and associated storage and handling facilities. Choices:  1. FGD and ACI need a lot of material.  2. ACI only needs a little material.  3. It is difficult to find a large enough facility. 

2