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.

The girl shared her lunch with her friend.
Her friend forgot to bring his lunch.
cause

The woman wrote a check to the gas company.
She received her monthly bill.
cause

The clock stopped ticking.
The clock showed the wrong time.

effect