Given a premise, an initial context, an original ending, and a counterfactual context, the task is to generate a new story ending aligned with the counterfactual context and as close to the original ending as possible. 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 and the story's general plot. The original ending is the last three sentences of the story. Also, a counterfactual context is a slight modification to the initial context. You should write a new story ending that edits the original story ending as little as possible to regain coherence with the counterfactual context. To sum up, you should write the last three sentences of a story based on the premise(first sentence) and the counterfactual context(second sentence) of the story.

Premise: Rick received a mysterious package in his mailbox. 
 Initial Context: Having no idea where it came from, he was reluctant to open it. 
 Original Ending: He carefully took the package to his backyard and opened it slowly. Inside the package was a small ring and a folded note. It was a surprise gift from his grandmother for his birthday. 
 Counterfactual Context: Having no idea what it was and the recent news he called the police.
The bomb squad took the package to his backyard and opened it slowly. Inside the package was a small ring and a folded note. It was a surprise gift from his grandmother for his birthday. 