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:
I left work early.
I had a headache.

Ex Output:
cause


Ex Input:
The customer thought the souvenir was overpriced.
He bargained with the vendor.

Ex Output:
effect


Ex Input:
The researchers proved the theory.
Individuals accepted the theory.

Ex Output:

effect