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.

The service at the restaurant was slow.
(1)There were many empty tables.(2)The restaurant was crowded.
2

The button on my shirt fell off.
(1)I sewed the button back on.(2)I glued the button back on.
1

The electricity in the house shut off.
(1)I looked for a flashlight.(2)I picked up a shovel.

1