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 darts to his feet.

SOLUTION: Someone has entered the room and stands behind someone.

PROBLEM: Now, he heads down a flight of stairs.

SOLUTION: He gives someone a piercing stare and she looks away.

PROBLEM: He moves the stump and tries to chop it again.

SOLUTION:
He tries again and chops it again.