Task: Story Composition
Input (English): Premise: Last week I needed to get my science textbook. 
 Initial Context: The campus bookstore was selling it for a hundred dollars. 
 Original Ending: That price was far too expensive. I decided to then buy it off amazon. It came the next day? 
 Counterfactual Context: The campus bookstore was giving it for free.
Output (English): That price was perfect! I decided to wait in like and buy it. I waited 4 hours for it.