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: Jackson wanted to run a half-marathon. 
 Initial Context: He started to train everyday. 
 Original Ending: He soon was able to run faster than his friends. He participated in the half-marathon with his friends. He beat all of them to the finish line. 
 Counterfactual Context: He twisted an ankle while training and had to drop out.
Solution:
Soon his friends were running much faster than him. He went to the half-marathon to cheer on his friends. They all made it to the finish line. 