Task: Story Composition
Input (English): Premise: Fred was a dog owner who was thinking of adopting another dog. 
 Initial Context: He went down to the humane society with his current dog in tow. 
 Original Ending: The idea was to see how well his dog got along with any new ones. Fred found a mutt who seemed to hit it off with his current dog. He brought home the mutt and they lived happily ever after. 
 Counterfactual Context: His girlfriend convinced him to get a cat instead.
Output (English): The idea was to see how well his dog got along with a at. Fred found a cat who seemed to hit it off with his current dog. He brought home another cat and they lived happily ever after.