Task: Story Composition
Input (English): Premise: Charlie is really bad at playing tennis. 
 Initial Context: Charlie really wants to get good so he practices all day and night. 
 Original Ending: After a couple of months of practicing, Charlie gets very good. Now that Charlie is very good at tennis everyone likes Charlie. Charlie is glad he practiced so hard at tennis. 
 Counterfactual Context: Charlie really wants to get good but he's fat and can't move fast.
Output (English): After a couple of months of practicing, Charlie gets very good. Now that Charlie is very good at tennis everyone likes Charlie. Charlie is glad he practiced so hard at tennis.