Task: Story Composition
Input (English): Premise: Hank wanted water. 
 Initial Context: But he noticed that he already had a bottle of water on his desk. 
 Original Ending: He remembered that he didn't finish it the day before. He didn't want to waste it. So he decided to drink the day old water. 
 Counterfactual Context: But he noticed that he already had a bottle of soda on his desk.
Output (English): He remembered that he didn't finish it the day before He didn't want to waste it. So he decided to drink the day old soda.