I'm creating a pattern that uses alternation (|) to match exactly the 20 specified items. For each item, I'm escaping special regex characters like periods, plus signs, parentheses, etc. to ensure they're treated as literal characters and not regex operators. This approach ensures we match only the exact strings in the target list and nothing else in the text. Each target item is separated by the | operator, creating a single comprehensive pattern that matches any of the specified strings.