I am not completely clear on what you are asking in this question but I will try to provide an answer as best as I can. Depending on the definition of exposition this phrase can be taken many ways. The first definition is "a comprehensive description and explanation of an idea or theory." So this could simply be a theory or explanation as to what a witch is.
Using a different definition from the archaic roots of the word you get "the action of making public; exposure". So it could be the act of making a witch come out of the so called "broom closet" and/or in terms of the witch trials and burning times it could be an argument or command for a Witch to confess her sundry acts of Witchcraft.
The exposition of "Hansel and Gretel" introduces the siblings, Hansel and Gretel, who are left in the forest by their parents because of a famine. They come across a gingerbread house inhabited by a wicked witch who lures them in with the promise of food and shelter.
Exposition of tangled
The exposition of a passage typically introduces the main characters and setting, providing background information to set the stage for the main events. Look for details that establish the context and lay the foundation for the story's development to identify the exposition.
The accurate way to say it would be an exposition on. You can also go ahead and say an exposition of.
What is the exposition in the Ratotouille? Exposition(two events) 1. 2.
exposition of monkey and the turtle
The exposition is the setting and the characters
the exposition of aged mother
the exposition of aged mother
What is the exposition of a Crush
exposition in the turning point in the story
exposition of ambitous guest