Task: Story Composition
Input (English): Premise: William came over to Isaac's house. 
 Initial Context: They both went outside to play. 
 Original Ending: William and Isaac kicked a soccer ball together. They began to get tired. They both went back inside Isaac's house. 
 Counterfactual Context: They both decided to study.
Output (English): William and Isaac spent the day studying together. They began to get tired. They both had a nap inside Isaac's house.