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: Jon stared at the green fires below. Choices:  1. The green color of the fires was caused by a chemical burning. 2. Jon was watching normal campfires in the distance. 3. The fires that were burning appeared green in color.

2