Instructions: In this task you are given a premise and two alternatives in Chinese. You must choose the alternative that is more plausibly the cause or effect of the situation described by the premise. The input format is "premise
(1)alternative_1(2)alternative_2", the output should either be "1" or "2" based on your judgment.
Input: 我改变了谈话的话题。
(1)我用完了要谈的事情。(2)谈话变得紧张起来。
Output:
2