Q: Given a premise, an initial context, an original ending, and a new ending, the task is to generate the counterfactual context that is aligned with the new ending. 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. The original ending is the last three sentences of the story. Also, you are given a new ending that can provide the new story with the same premise. You should write a counterfactual context to explain the small differences between the original and new endings. More specifically, a story context contains the general plot of the story. And a counterfactual context is a slight modification to the initial context. To sum up, you should write the second sentence of a story based on the premise(first sentence) and the new ending(last three sentences) of the story.
Premise: In Mexico, I got to visit 1 of the 7 wonders, Chichen Itza. 
 Initial Context: My classmates and I took a big bus to get there. 
 Original Ending: On our way back to the city, the bus broke down. We sat in the sweltering Mexican heat for hours waiting for a new bus. Finally, the new bus came to take us back to the city. 
 New ending: On our way back to the city, the van broke down. We sat in the sweltering Mexican heat for hours waiting for a new van. Finally, the new van came to take us back to the city. 
A:
My classmates and I took a private van to get there.