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: I left the fruit out on the table.
Flies swarmed the fruit.

SOLUTION: effect

PROBLEM: I wanted to lighten the mood of the conversation.
I told a joke.

SOLUTION: effect

PROBLEM: The milk stayed cold.
I stored it in the refrigerator.

SOLUTION:
cause