TASK DEFINITION: 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.
PROBLEM: 那人的头撞了一下。
他得了脑震荡。

SOLUTION: effect

PROBLEM: 女人的政治观点发生了变化。
她换了党派。

SOLUTION: effect

PROBLEM: 那人凝视着夜空。
他认为它很漂亮。

SOLUTION:
cause