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.

Input: Consider Input: 电梯门开了。
电梯到达指定的楼层。

Output: cause


Input: Consider Input: 朋友们掷硬币。
他们想做出一个公平的决定。

Output: cause


Input: Consider Input: 男人向女人表白了。
女人拒绝了他。


Output: effect