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.

那人的头撞了一下。
他得了脑震荡。
effect

我挤压了这个湿海绵。
水从中渗出。
effect

我半夜醒来，感觉很冷。
我穿上运动裤。

effect