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 crowd applauds for them.

SOLUTION: Men are playing volleyball on a court.

PROBLEM: Someone sweeps past to meet his entourage, leaving someone standing to one side at the entrance.

SOLUTION: Someone steps forward to greet them.

PROBLEM: The kids are sitting behind a couch watching.

SOLUTION:
And advertisement is on the screen.