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.

Example Input: The tree branch landed in the river.
(1)The branch moved downstream.(2)The river's current became stronger.
Example Output: 1

Example Input: The couple was happy to see each other.
(1)They kissed.(2)They rested.
Example Output: 1

Example Input: The lobbyist persuaded the legislature to support the bill.
(1)The president vetoed the bill.(2)The legislature passed the bill.
Example Output:
2