Detailed Instructions: Given a premise, an initial context, an original ending, and a counterfactual context, the task is to generate a new story ending aligned with the counterfactual context and as close to the original ending as possible. Each instance consists of a five-sentence story. The premise is the first sentence of a story, and the second sentence, which is the initial context, provides more information about the story's context and the story's general plot. The original ending is the last three sentences of the story. Also, a counterfactual context is a slight modification to the initial context. You should write a new story ending that edits the original story ending as little as possible to regain coherence with the counterfactual context. To sum up, you should write the last three sentences of a story based on the premise(first sentence) and the counterfactual context(second sentence) of the story.
Q: 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.
A:
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. 