In this task your given two statements in Vietnamese. 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.

Let me give you an example: Các mặt hàng đã được đóng gói trong bọc bong bóng.
Nó dễ vỡ.
The answer to this example can be: cause
Here is why: The object being delicate is the cause of wrapping it in bubble wrap.

OK. solve this:
Tôi dẫm lên lon nhôm.
Chiếc lon bị nghiền nát.
Answer:
effect