Task: Story Composition
Input (English): Premise: Elena wanted to lose weight. 
 Initial Context: But she didn't want to change her eating habits. 
 Original Ending: Nor did she want to exercise. So instead she decided to throw up her food after each time she ate. Unfortunately, she has developed an eating disorder called bulimia. 
 Counterfactual Context: She went on a very healthy diet and started exercising.
Output (English): She didn't want to exercise. So instead she decided to throw up her food after each time she ate. Unfortunately, she has developed an eating disorder called bulimia.