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.

摄影师忘了用相机上的闪光灯。
照片模糊不清。
effect

男人涂上了防晒霜。
他去了海滩。
cause

锁开了。
我转开了锁里的钥匙。

cause