Task: Story Composition
Input (English): Premise: Martha was at the fair with her family. 
 Initial Context: She was holding her toddler's hand. 
 Original Ending: Somehow, he slipped away. Martha frantically began searching for him. Luckily, an employee had spotted him and they were reunited. 
 Counterfactual Context: Her teen son just sat and talked on his cellphone the whole day.
Output (English): He slipped away after a while. Martha knew he was with his friends. As expected, an employee later spotted him with a group of teenagers.