premise: Yvonne had always been overweight.
initial: For New Year's she made a resolution to start exercising.
counterfactual: This was due to an undiagnosed thyroid problem, so exercise had never helped her shed the pounds.
original_ending: She began jogging everyday. In two months she had lost 23 pounds. Yvonne was proud of herself.
edited_ending: She began jogging everydayIn two months she had lost 0 poundsYvonne was upset with herself<SEP>She began taking medicine everyday.In two months she had lost 23 pounds.Yvonne was proud of herself.<SEP>She began taking thyroid medication everyday.In two months she had lost 23 pounds.Yvonne was proud of herself.