Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine the neutral choice based on your inference from the statement and your commonsense knowledge. The neutral choice is a sentence that neither agrees nor disagrees with the statement. Indicate your answer as '1', '2', or '3', corresponding to the choice number of the selected sentence. If sentence X agrees with sentence Y, one's correctness follows from the other one. If sentence X disagrees with sentence Y, they can not be correct at the same time.
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. 2. They used sign language to talk about their scientific ideas. 3. They spoke out loud.

2