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: 我仔细考虑了这个问题。
我想出了一个解决办法。

A: effect
****
Q: 那个男孩被锁在屋外。
他从一扇开着的窗户爬进来。

A: effect
****
Q: 我向收费站服务员付了费。
她让我通过了收费站。

A:
effect
****