That's a good story. It's short, too. And it has a bonus of being easily understood by most readers who are above the age of 12.
I suggest that you (1) read the story (2) review (or learn) the Schaffer structure and (3) write your paper.
If that is tough to understand, ask your teacher or perhaps a fellow student who understands the Schaffer structure to assist you in planning, organizing, and writing your answer.
We don't do assignments FOR students here. We can only offer help to students who are willing to put forth effort on their own.