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]: 旅客入住了他们的旅馆房间。
(1)他们打开了行李箱。(2)他们去了机场。
[A]: 1


[Q]: 这男人目睹了外星人。
(1)他那时出现了幻觉。(2)他那时在冥想。
[A]: 1


[Q]: 这个男人的眼睛流泪了。
(1)他的眼睛进灰了。(2)他戴上了护目镜。
[A]:
1