The pattern is broken into 4 main parts with alternation:
1. API keys: sk_(test|live)_ followed by the specific characters
2. SKU patterns: SKU-\d{4}-[A-Z]{2}-\d{2}\/[A-Z]{2}
3. Email addresses: Starting with username patterns (allowing letters, numbers, dots, underscores), optional + section, @ symbol, and domain parts
4. Geographic coordinates: Matching the specific format with degrees, minutes, seconds including the degree symbol (°) and quotes

Each section is carefully crafted to match only the exact patterns in the target items while avoiding any similar patterns in the surrounding text. Special characters are properly escaped where needed (like / in SKUs and \" in coordinates).