premise: Rover liked playing fetch with his owner.
initial: One day his owner threw the ball too hard.
counterfactual: One day his owner didn't play with him.
original_ending: It bounced across the street. Rover weaved through traffic with amazing skill. He fetched the ball and brought it back to his owner.
edited_ending: He found the ball himself and accidentally bounced it across the street.Rover weaved through traffic with amazing skill.He fetched the ball and brought it back to his yard.<SEP>A neighbor's ball bounced across the street.Rover weaved through traffic with amazing skill.He fetched the ball and brought it back to its owner.<SEP>Rover began to act different.His owner noticed Rover's depressive behavior.He decided to play fetch with him again.