premise: I used to see an old man walk down the street every day.
initial: One day, to my surprise, he wasn't there!
counterfactual: One day, to my surprise, he was running!
original_ending: I asked everyone what had happened to him. Nobody knew, I thought that he had died! One day the man was out walking again!
edited_ending: I asked why he was running.He did not know, he thought it would be fun.One day the man was out walking again!<SEP>I asked him what had happened to him.He said he had a new exercise regime and he felt great.I never saw the man was out just walking again!<SEP>I asked him what had happened.He said he didn't know, but felt very alive!One day the man was out walking again!