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 father put his daughter in her stroller.
He was tired of carrying her.

SOLUTION: cause

PROBLEM: The dog barked.
A knock sounded at the door.

SOLUTION: cause

PROBLEM: The child's shoelaces came untied.
He ran around on the playground.

SOLUTION:
cause