TASK DEFINITION: In this task your given two statements in Chinese. You must judge whether the second sentence is the cause or effect of the first one. Label the instances as "cause" or "effect" based on your judgment. The sentences are separated by a newline character.
PROBLEM: 舞台上的帷幕拉开了。
演出的第一幕开始了。

SOLUTION: effect

PROBLEM: 商店收银员叫保安。
顾客使用假币。

SOLUTION: cause

PROBLEM: 战争造成的平民死亡人数激增。
和平主义者举行了抗议。

SOLUTION:
effect