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]: 驾驶员打开了汽车的大灯。
(1)他听到雷声。(2)太阳下​​山了。
[A]: 2


[Q]: 那人刺穿了他的脚。
(1)他走进一个水坑。(2)他踩在碎玻璃上。
[A]: 2


[Q]: 男孩被绊倒了。
(1)他的夹克被解开了。(2)他的鞋带解开了。
[A]:
2