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: Allison bought herself a new treadmill.
Initial Context: She hopped on for the first time and started experimenting.
Original Ending: She kept going faster and faster on the treadmill. Eventually, she couldn't run fast enough. Allison fell off the back of the treadmill and slammed onto the floor.
New ending: Her friend tried it and kept going faster and faster on the treadmill. Eventually she couldn't run fast enough. The friend fell off the back of the treadmill and slammed onto the floor.
Allison never used it.

Premise: Todd was riding his dirt bike in the woods.
Initial Context: He began to ride down a small dirt road away from his friends.
Original Ending: While on the road, his dirt bike began to stop working. Suddenly, Todd's dirt bike ran out of gas and he was alone. Todd had to push the dirt bike five miles back to his truck.
New ending: While on the road, his dirt bike began to stop working Suddenly, Todd's dirt bike ran out of gas Todd's friends rode back and got his truck and picked him up.
He ride down a small dirt road together with his friends.

Premise: Sarah planned to spend the day at the beach with her friends.
Initial Context: On the way, she got a flat tire on the interstate.
Original Ending: A man pulled over to help her change the tire. He was an old friend of hers and afterwards they had lunch. Sarah still had a great day despite her flat tire.
New ending: A man pulled over to help her call for a tow truck. He was an old friend of hers and afterwards they had lunch. Sarah still had a good day despite her accident.
On the way, she wrecked her car into the guardrail.