premise: Bob moved from a small town to a large city.
initial: He was concerned he would always get lost.
counterfactual: He was confident because he never got lost.
original_ending: The first day he got lost trying to get home from work. Then Bob bought a navigation system to help him learn his way around. The navigation system helped Bob a lot.
edited_ending: The first day he didn't get lost trying to get home from work.He was happy he didn't need to buy a navigation system to help him.Bob liked that he saved money.<SEP>Bob had trouble when his office moved though, and he got lost.Then Bob bought a navigation system to help him learn his way around.The navigation system helped Bob a lot.<SEP>To his surprise, the first day he got lost trying to get home from work.Then Bob bought a navigation system to help him learn his way around.The navigation system helped Bob a lot.