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: 男孩把铅笔磨光了。
它很钝。

SOLUTION: cause

PROBLEM: 那女人沮丧地叹了口气。
她丈夫误解了她的顾虑。

SOLUTION: cause

PROBLEM: 我把艺术品挂在房间里。
墙壁看起来光秃秃的。

SOLUTION:
cause