Task: Story Composition
Input (English): Premise: Mike brought his puppy over to my house. 
 Initial Context: She must have smelled a packrat. 
 Original Ending: She yipped and growled at something under my cabin. I told Mike she seemed like she was pretty energetic. An older fellow, he thought I was talking about his wife. 
 Counterfactual Context: She couldn't smell anything.
Output (English): She started yipping and growling at something under my cabin. I told Mike she seemed like she was pretty energetic. An older fellow, he thought I was talking about his wife.