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 glances across at someone as the group makes their way to the plaza.

SOLUTION: People bring up the rear.

PROBLEM: Someone, facing her, keeps moving from side to side, trying to get her to look at him.

SOLUTION: Someone leans against the side of the building and pulls her arm away.

PROBLEM: He continues to throw the balls down the lane while clenching his fist afterwards.

SOLUTION:
He looks back and shakes his fist while throwing several more balls.