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.

Example Input: 这个少年有纹身。
她想叛逆。
Example Output: cause

Example Input: 我感到筋疲力尽。
我学习了一整天。
Example Output: cause

Example Input: 牛排很难切。
刀子很钝。
Example Output:
cause