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.

[EX Q]: 一块陨石落在了海里。
海啸发生了。
[EX A]: effect

[EX Q]: 那人戒烟了。
他开始多锻炼。
[EX A]: effect

[EX Q]: 老师把作业布置给学生。
学生发出了抱怨。
[EX A]:
effect