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: Al rode his bike to the store for candy.
Initial Context: At the store, Al left his bike outside for a long time.
Original Ending: When Al came out, his bike was gone! Al looked up and down the street but didn't spot his bike. That night, Al cheered himself up by gorging on candy.
New ending: When Al came out, his bike was still there. He got on the bike and rode down the street. That night Al enjoyed gorging on his candy.
A:
At the store, Al left his bike locked up inside.