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.

演员在演出前心慌。
他有上台紧张症。
cause

体育场奏起了国歌。
球迷们转向国旗。
effect

女人感到怀旧。
她遇到了一个儿时的朋友。

cause