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: I've never heard that sound come from a human being before. Choices:  1. I've never heard such a loud burp.  2. It wasn't a sound that a human makes.  3. It was a common sound that people make.

3