TASK DEFINITION: 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.
PROBLEM: The girl performed in a dance recital.
Her parents came to watch the recital.

SOLUTION: effect

PROBLEM: The woman spotted her friend from across the room.
The woman waved.

SOLUTION: cause

PROBLEM: The girl made a mistake on her exam.
She erased her answer.

SOLUTION:
effect