For this challenge, I'm using an alternation-based approach that exactly matches each target item. This avoids the complexity and potential errors of creating category-based patterns. Each item is escaped properly where needed (like periods, plus signs, parentheses, etc.) to ensure they match literally. I'm also using the alternation operator (|) to check against each item, and I've ordered them from longest to shortest to optimize matching efficiency. This pattern will match exactly the 16 specified items and nothing else because it's explicitly listing each target string.