TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: The boy, now older, plays an electric guitar.

SOLUTION: The boy rides on a miniature railway.

PROBLEM: Someone spins around and faces someone, and they give a passionate kiss.

SOLUTION: Someone reclines on cushions as people dance in the ballroom, which is lit by hundreds of candles.

PROBLEM: A man walks into the room behind her.

SOLUTION:
A woman is brushing her teeth.