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: 汽车汽油用完了。
司机被困在路上。
Example Output: effect

Example Input: 这对夫妇去南方过冬了。
他们退休了。
Example Output: cause

Example Input: 用购物中心取代当地公园的计划被宣布了。
环保主义者开始了请愿。
Example Output:
effect