{"content":"I'm creating an extremely difficult challenge requiring advanced regex techniques by combining multiple complex patterns:\n1. Highly varied ISBN formats with different separators and validation codes\n2. Cryptocurrency addresses (Bitcoin, Ethereum) with specific format requirements\n3. Base64-encoded strings with specific pattern prefixes\n4. Complex password patterns with specific character requirements\n5. IPv6 addresses with compressed notation and embedded IPv4\n6. OAuth tokens with specific patterns but variable components\n7. Complex product codes with validation digits\n8. Non-standard date-time formats with timezone offsets\n\nThe challenge includes look-alike patterns that should NOT match, requiring precise pattern matching with potential negative lookaheads/lookbehinds. Many strings contain special characters that need careful escaping. The text includes data that looks similar but has subtle differences to trap naive approaches.","function_call":{"name":"make_mo... (truncated)