Task: Story Composition
Input (English): Premise: Bart put food coloring in his dad's drink in secret. 
 Initial Context: His dad looked at his green beer. 
 Original Ending: He shrugged his shoulders. He drank the beer in six gulps. Bart's dad was less thirsty. 
 Counterfactual Context: His dad was furious when he saw what Bart had done.
Output (English): He got another beer. He drank the beer in six gulps. Bart's dad was less thirsty.