How to get an LLM to rephrase sentences so they fit a certain pattern?

I do find some stuff online about paraphrasing but nothing about rephrasing input sentences. To be more clear about what I'm talking about: if I give the sentence "The Taj Mahal is big" and the pattern "The ... is not ...", the model should return "The Taj Mahaj is not small". "I'm disappointed in my bò bún, I like them more spicy than this" should return "The bò bún is not spicy". I know it's possible with modern LLMs because …

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