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.

[Q]: Sunlight entered the room.
(1)I opened the curtains.(2)I unlocked the door.
[A]: 1


[Q]: The teacher took roll.
(1)She identified the students that were absent.(2)She gave her students a pop quiz.
[A]: 1


[Q]: The man received strange looks from passengers on the train.
(1)He was staring at the ground.(2)He was talking to himself.
[A]:
2