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]: 我谢绝了生日聚会的邀请。
我不在城里。
[EX A]: cause

[EX Q]: 我觉得很无聊。
我打哈欠了。
[EX A]: effect

[EX Q]: 我谢绝了生日聚会的邀请。
我不在城里。
[EX A]:
cause

