You will be given a definition of a task first, then some input of the task.
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.

Premise: I was six years old when I lost my first tooth. 
 Initial Context: I had been nervous to lose it because of my cousin. 
 Original Ending: He told me how much it would hurt, and I fell into an uneasy sleep. I woke up to realize there was a small bloodstain on the couch. The tooth was out, and it hadn't caused any pain! 
 Counterfactual Context: I had been excited to lose it because of my cousin.
Output:
He told me how little it would hurt, and I fell into a relieved sleep. I woke up to realize there was a small bloodstain on the couch. The tooth was out, and it hadn't caused any pain! 