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.

Ex Input:
狗吠了。
传来一声敲门声。

Ex Output:
cause


Ex Input:
这个女人羡慕她的妹妹。
她妹妹很高兴。

Ex Output:
cause


Ex Input:
商人的信用卡被拒绝了。
他用现金付了钱。

Ex Output:

effect