instruction:
In this task your given two statements. 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:
The man raised his eyebrows.
He was surprised.
answer:
cause


question:
The woman sighed with frustration.
Her husband misunderstood her concerns.
answer:
cause


question:
The doctors amputated the patient's leg.
It was severely infected.
answer:

cause