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: When I and my brother Joe were little, our grandfather visited. 
 Initial Context: He had flown from California to our home in North Carolina. 
 Original Ending: Granddad said he came with a surprise. The following morning he drove us to the train station. He took us on our first train ride. 
 Counterfactual Context: He had flown from California to our home in North Carolina and told us we were going for a plane ride.
Solution:
We were excited. The following morning he drove us to the train station. When we got off the train we went to the airport to go on the plane. 