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.

[Q]: 风吹过开着的窗户。
窗帘抖动了。
[A]: effect


[Q]: 大楼被疏散了。
火警响了。
[A]: cause


[Q]: 这对夫妇见到对方很高兴。
他们接吻了。
[A]:
effect