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 Input:
我错过了我女朋友的电话。
我给她回了电话。

Ex Output:
effect


Ex Input:
舞台上的帷幕拉开了。
演出的第一幕开始了。

Ex Output:
effect


Ex Input:
桌子摇晃着。
地板不平。

Ex Output:

cause