I need to write a summary of a book. The summary should be at least 100 words long and contain at least 5 sentences. The book is titled "The Great Gatsby" by F. Scott Fitzgerald. Please include the main themes of the book and the names of the main characters. Highlight at least one section of the summary with markdown, i.e., *highlighted section*. Finish the summary with this exact phrase: "Is there anything else I can help with?"
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