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: Jason is going to take a trip to France. 
 Initial Context: He decides to learn some French. 
 Original Ending: Jason downloads a French language tutorial program to his phone. He uses the tutorial every day to learn French. When he arrives in France Jason is able to speak some French. 
 Counterfactual Context: He already knew how to speak French.
Output:
Jason decides to buy a dictionary just in case. He was really exited about his trip to France. When he arrives in France Jason used the dictionary for words he didn't knew. 