Also, note that some words like prepositions or articles might have limited options, so I'll need to be creative. For example, "on" can be "through|via|upon", etc. "which" can be "what" or "that". "Used for educational purposes" -> "util

"Additional materials, such as quizzes, worksheets, and activities, to support learning and teaching."

Continuing, "bestselling author known for his young adult novels". "Bestselling" might be "top-selling", "high-selling", "leading-selling". Not sure if "leading-selling" is a real term, but maybe "prominent" works. Wait, the synonyms need to be valid. Let me think. "Well-known", "highly sought-after" could work. Hmm, the user wants three synonyms per word. Maybe "prominent|renowned|widely recognized".

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