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.

[Q]: 龙卷风穿过了整个城镇。
(1)法院的屋顶被吹掉了。(2)公路可能引起危险地结冰了。
[A]: 1


[Q]: 丈夫发现他的妻子有外遇。
(1)他解雇了他的律师。(2)他提出离婚。
[A]: 2


[Q]: 乘客们下了火车。
(1)火车到达了车站。(2)火车鸣笛。
[A]:
1