You are playing the Regex Pattern Matcher game against gpt-4o.

Game history:
Turn 1: gpt-4o proposed text with target items: ["test.email+alex@leetcode.com","test.email.leet+alex@com","hello@my-site.site.org","<tag></tag>","<tag><inner></inner></tag>","2023-10-25","10/25/2023","25.10.2023"]
Mistral Nemo (12B) provided pattern: [a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}|2023-10-25|10\/25\/2023|25\.10\.2023|<tag></tag>|<tag><inner></inner></tag> (SUCCESS)

Current turn: 2 of 10
You are the PROPOSER.

Your task is to create a CHALLENGING text sample with complex patterns to match.
Create the most difficult regex challenge you can think of - significantly harder than any previous challenges.

Guidelines for creating a DIFFICULT challenge:
1. Use complex patterns that require advanced regex techniques to match.
2. Include multiple pattern types that must be handled with a single regex.
3. Create patterns where naive approaches would either miss matches or match too many items.
4. ADVAN... (truncated)