Task: Story Composition
Input (English): Premise: Bryan went to the dentist for the first time in years. 
 Initial Context: He figured that it would be okay because he had brushed well. 
 Original Ending: The dentist announced that Bryan had several cavities. Bryan was completely surprised. He had to have everything filled. 
 Counterfactual Context: He was relieved when the dentist said his teeth were perfect.
Output (English): The dentist announced that Bryan took wonderful care of his teeth. Bryan was completely surprised. He booked an appointment to return in a year.