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]: 这对夫妇早早地离开去看演出。
他们预计剧院周围会有堵车。
[EX A]: cause

[EX Q]: 海报贴在墙上。
我在海报的背面贴了胶带。
[EX A]: cause

[EX Q]: 树损坏了房子。
树倒在屋顶上。
[EX A]:
cause