premise: Ethan enrolled in a singing lesson near his house.
initial: He did not have any previous experience and was nervous.
counterfactual: His instructor was a man.
original_ending: His instructor was a nice lady who was a world renown singer. Ethan practiced singing the scales with her. Ethan soon became an amazing soprano.
edited_ending: His instructor was a nice man who was a world renown singer.Ethan practiced singing the scales with him.Ethan soon became an amazing soprano.<SEP>His instructor was a nice man who was a world renown singer.Ethan practiced singing the scales with him.Ethan soon became an amazing tenor.<SEP>His instructor had previously been a world-renowned singer.Ethan practiced singing the scales with him.Ethan soon became an amazing tenor.