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: Joe has always admired the President. 
 Initial Context: Joe wants to be just like him. 
 Original Ending: Sometimes Joe dresses in his suits. He looks in the mirror and sits in his office. Joe is only vice president and that makes him sad. 
 Counterfactual Context: That's why Joe took on the chief of staff position.
He wanted to be able to help the president. He looks in the mirror and is proud of himself. Joe is a great chief of staff 