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: Karen was an American driving in the mountains of Norway.
Initial Context: A truck began tailgating her while beeping its horn.
Original Ending: Flustered already, and now mad, she wasn't comfortable speeding up. Soon she realized she had made the truck miss its ferry. She felt bad that the trucker had to wait so long to cross the fjord.
New ending: Relaxing, she was glad she could take her time. Soon she saw a truck that had missed its ferry. She felt bad that the trucker had to wait so long to cross the fjord but they conversed and became friends.
It was so peaceful riding through the mountains.

Premise: Aya was going to the shore with friends.
Initial Context: Her mom urged her to take a jacket.
Original Ending: Aya didn't think she needed one, but she took one anyway. At the shore, it grew windy and chilly. Aya was glad she'd listened to her mom after all!
New ending: Aya would be late, but she caught up with her friends anyway. At the shore, it grew windy and chilly. Aya was glad she'd gone back to change after all!
Aya didn't dress properly so she ended up having to go home.

Premise: A few weeks ago I had to teach all my friends how to sing a song.
Initial Context: It was a song about how much fun we had at camp this year.
Original Ending: All my friends are terrible singers though. We worked on the song all week. At the end of the week, my friends still were not good singers.
New ending: All my friends didn't have a lot of patience though. We worked on the song all week. At the end of the week, my friends didn't sing the song to the best of their potential.
All my friends were excellent singers.