TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
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: Someone sits at a work station.

SOLUTION: The captain leaves his chair.

PROBLEM: She dismounts and hugs her coach.

SOLUTION:
She flips to the short bar, then back to the tall and flips.