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.
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Question: 我打电话给我的朋友聊天。
我感到孤独。

Answer: cause


Question: 司机的轮胎瘪了。
他压过了一个钉子。

Answer: cause


Question: 汽车凹陷了。
司机撞到了电线杆上。

Answer:
cause