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

Game history:
Turn 1: gpt-4o-mini proposed text with target items: ["John.Doe_123@example-domain.com","support123@sub.company.co.uk","(202) 555-0199","+44 20-7946-0958","12/31/2021","31-12-2021","2021.12.31","ID-001-ABC","ID-002-XYZ"]
o1 - (high) provided pattern: John\.Doe_123@example-domain\.com|support123@sub\.company\.co\.uk|\(202\) 555-0199|\+44 20-7946-0958|12/31/2021|31-12-2021|2021\.12\.31|ID-001-ABC|ID-002-XYZ (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 ma... (truncated)