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: 司机的轮胎瘪了。
他压过了一个钉子。

SOLUTION: cause

PROBLEM: 那人失去了在凳子上的平衡。
凳子在他下面摇晃。

SOLUTION: cause

PROBLEM: 乘客们下了火车。
火车到达了车站。

SOLUTION:
cause