instruction:
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.
question:
Tôi nhổ sữa ra.
Sữa có vị chua.
answer:
cause


question:
Con chim vỗ cánh.
Nó bay lên cao.
answer:
effect


question:
Ngọn lửa trên ngọn nến đã tắt.
Tôi thổi vào bấc.
answer:

cause