I'm using alternation (|) to match each specific item exactly. This approach is safer than trying to create general patterns for each category, as it ensures we only match the exact target items. The pattern includes:
1. Three specific date formats (YYYY-MM-DD, MM/DD/YYYY, and DD/MM/YYYY)
2. One IPv4 address and one IPv6 address
3. Two specific credit card numbers
4. Two social security numbers

Each item is matched exactly as provided, and the alternation ensures that only these specific items will match.