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: Johnny is a pitcher for his baseball team. 
 Initial Context: He had a big game last week and he needed to practice his pitches. 
 Original Ending: He had to learn how to throw a curveball. He didn't know how, so he spent a whole month practicing. He learned how to throw a curveball and his team won the game! 
 Counterfactual Context: He threw the best curveballs.
Solution:
He had to learn how to throw a changeup. He didn't know how, so he spent a whole month practicing. He learned how to throw a changeup and his team won the game! 