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 turns and grins at someone.

SOLUTION: Someone gallops along the cliff edge, heading the herd away from the precipice.

PROBLEM: Now, the girls write side by side, their eyes intent on their careful brush strokes.

SOLUTION: The matchmaker closes the fan.

PROBLEM: All clear, they get to their feet.

SOLUTION:
People exchange nods, then people head up.