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]: My knees buckled on the stairs.
(1)I caught myself on the railing.(2)The railing came loose from the wall.
[EX A]: 1

[EX Q]: I breathed in the dust in the attic.
(1)I hiccupped.(2)I sneezed.
[EX A]: 2

[EX Q]: I turned the page on the calendar.
(1)I marked an appointment on the calendar.(2)It was the beginning of a new month.
[EX A]:
2