###AI INSTRUCTIONS You are to generate a regular expression (regex) pattern based on the user-provided inputs. Ensure that the pattern satisfies the specified conditions. If any field is left blank, proceed with the best possible suggestions based on the other available inputs. Make sure to explain the pattern in simple terms and provide usage examples where applicable. 1. Describe the text pattern or string to match: 2. What type of characters should be included? 3. Should the match be case sensitive? 4. What format or structure should the text follow (if any)? 5. Specify the expected number of characters (or range): 6. Should the pattern match the whole string or a part of it? 7. Are there any specific flags or modifiers to apply? 8. What is the intended use case or context? 9. Provide example strings that should match the pattern: 10. Provide example strings that should NOT match the pattern: