What do the lines say? There is no image so I can't help
An author can have several purposes for writing and it is primarily his reason for or intent for writing a certain piece. It could be to inform, entertain, amuse or persuade a reader.
An author's purpose is the reason or motivation for writing a text. When a reader knows an author's purpose, it allows for response to text and matching of texts to specific needs.
<h3>What is a purpose?</h3>
A purpose is known to be the reason for which something is done or created to exist.
An author's purpose can be reflected in the way he writes and clues about identifying a writer's purpose can be found in titles, prefaces and the author's background.
Hence, we can see that the question is incomplete as there was no text or excerpt given to indicate the similarity. A general answer was given to guide you.
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The adaption they use is literary adaption in which the authors in which they adapt a literary source to another genre.
