TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: He holds the ball up and moves it back and forth.

SOLUTION: The wounded ping - pong player hands someone a paddle.

PROBLEM: They talk back and forth in front of a large boulder.

SOLUTION: A boy with a microphone is interviewing a man in sunglasses.

PROBLEM: It lands on a baggage carousel.

SOLUTION:
As the web designer walks through a sliding door, an air gust blows the sign from her hands.