Inferred you are referring to the story "The Broom Dog".
Explanation:
It begins with the words;
"A school bus is many things. A school bus is a substitute for a limousine. A school bus is the students’ version of a teachers’ lounge. A school bus is...".
From the above we notice the introduction employs the use of repetition which is commonly found in the writing styles of poems.
This repetition enables the reader dwell his mind on the subject of focus -school bus.
