Task: Story Composition
Input (English): Premise: Ian always let Lily copy his math homework before class. 
 Initial Context: And he let her cheat off him during tests too. 
 Original Ending: But the last two days of class, Ian was sick. And Lily didn't know what to do. On the day of the final exam, Lily failed. 
 New ending: But the last two days of class, Ian was sick. And Lily didn't know what to do. The teacher gave Lily a failing grade for the homework she turned in on those days. 
Output (English): And he never let her cheat off him again.