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.
Q: Premise: Sammy was tired of working, but she soldiered on. 
 Initial Context: Finally, it was time to leave the office for the day. 
 Original Ending: Being home, she thought  entering her garage, was wonderful. Then, a party surprised her when she opened her front door. She ate cake and enjoyed her friends and family. 
 New ending: She dreamt of being home, entering her garage, it was wonderful. Then, a party surprised her when she opened her front door. She ate cake and enjoyed her friends and family until she woke. 
A: 
She started at work so late she slept at the office.