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: They decided, by using an improved and creatively embellished version of sign language, to create a whole new language altogether for the purpose of easy and comfortable communication in what they suspected would be an intensive and long-term exchange of scientific ideas. Choices:  1. They used sign language to talk about their scientific ideas. 2. They spoke out loud. 3. They used sign language to talk.

2