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]: 电梯门开了。
电梯到达指定的楼层。
[A]: cause


[Q]: 汉堡肉变成焦褐色了。
厨师把它烤了。
[A]: cause


[Q]: 我迷上了这本书。
我忘记了时间。
[A]:
effect