TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: Then, the person uses the pedal to scrape one of the tires with it.

SOLUTION: A person spins the wheel of a bike with the pedal.

PROBLEM: Someone leans closer to someone.

SOLUTION: Someone is left standing on the tracks.

PROBLEM: Only a handful of surfers remain in the water.

SOLUTION:
Exhausted surfers haul themselves into rafts.