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:
The movie tickets sold out.
It was opening day for the movie.

Ex Output:
cause


Ex Input:
The girl bit her nails.
She was worried.

Ex Output:
cause


Ex Input:
The animal species became endangered.
Their habitat was destroyed.

Ex Output:

cause