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.
Problem:Premise: Peter wanted a snake as a pet. 
 Initial Context: At first his mom said no way, no how! 
 Original Ending: She was terrified, but then Peter gave her some books about snakes. His mom relented when she saw that some snakes were docile and calm. She allowed Peter to get a ball python snake! 
 Counterfactual Context: He stole one and hid it.
Solution:
His mom found it and was terrified, but then Peter gave her some books about snakes. His mom relented when she saw that some snakes were docile and calm. She allowed Peter to get a ball python snake! 