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.
Input: Premise: I got a new puppy. 
 Initial Context: His name is Brownie. 
 Original Ending: He chews everything, including my shoes. When he's not in my arms, I keep him in a crate. This ensures that he and my stuff are safe. 
 Counterfactual Context: He ran away before I could name him.
Output:
He chewed some things, including my shoes. I should have kept him in my arms, or kept him in a crate. This would have ensured that he and my stuff were safe. 