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.

Ex Input:
A tree fell on the power line.
The electricity in the neighborhood went out.

Ex Output:
effect


Ex Input:
The boy giggled uncontrollably.
His brother tickled him.

Ex Output:
cause


Ex Input:
The man got a discount on his groceries.
He used a coupon.

Ex Output:

cause