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: I was outside watching a flock of young sparrows. 
 Initial Context: Suddenly a sparrow hawk came down out of the sky! 
 Original Ending: The hawk dived through the center of the flock. The sparrows scattered frantically in every direction. The hawk did not catch any of the sparrows. 
 Counterfactual Context: Suddenly a mama sparrow came down out of the sky!.
She dove down through the center of the flock. The sparrows waited patiently for her. The sparrow had food for her babies. 

Premise: I recently went to a rock show in Sacramento. 
 Initial Context: The drive there was difficult because it was storming outside. 
 Original Ending: Fortunately I arrived at the venue safely. The band I went to see was really good. I hope to see another show at that venue very soon. 
 Counterfactual Context: The drive there was easy because the weather was beautiful.
I arrived at the venue safely. The band I went to see was really good. I hope to see another show at that venue very soon. 

Premise: A man went to the library to borrow a book. 
 Initial Context: He could not remember the name of the book. 
 Original Ending: He did however, recall that the book was made into a movie. The man tried to sing the movie theme song to the librarian. The librarian quickly was able to figure out the book. 
 Counterfactual Context: He remembered the exact book he wanted.

The librarian told him that the book was made into a movie. The librarian tried to sing the movie theme song to the man. The man quickly left the library with the book. 

