Given a premise and two alternatives, choose the alternative that is a more plausible 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.

[EX Q]: I knocked on my neighbor's door.
(1)My neighbor invited me in.(2)My neighbor left her house.
[EX A]: 1

[EX Q]: A man cut in front of me in the long line.
(1)I confronted him.(2)I smiled at him.
[EX A]: 1

[EX Q]: The boy giggled uncontrollably.
(1)His brother tickled him.(2)His brother kicked him.
[EX A]:
1