premise: Sam hopped into his mail truck and drove off.
initial: He was trying to do his route fast to get home early today.
counterfactual: He had forgotten to lock the rear doors, and as he drove off, the mail sacks emptied into the street behind him.
original_ending: He drove so fast he didn't see a pothole in the road. The truck bounced hard when he hit the pothole. Sam's head hit the steering wheel.
edited_ending: He drove so fast he didn't see the mail blowing away.The mail sacks bounced hard when they hit the street.Sam's mail truck soon was empty.<SEP>He drove so fast he didn't see mail in the road.The truck bounced hard when he hit a pothole.Sam's head hit the steering wheel.<SEP>He drove so fast he didn't hear the mail sacks emptying.The truck bounced hard when he hit a pothole.Sam's head swung as he finally noticed the back of the truck open.