Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Premise: Nina was dreaming of world peace her whole live. 
 Initial Context: She knew she couldn't change the world but made small changes. 
 Original Ending: She contributed to her community and then to her country. She came up with so many good ideas, she was congratulated. She was proud when she received a Nobel prize for her work. 
 Counterfactual Context: She knew she couldn't change the world, so she did not try.
Student:
She contributed to her community. She came up with so many good ideas, she was congratulated. She was proud when she received an award from her city. 