{
  "Description": "4-Digits - NNNN",
  "RedundantCharacters": " -",
  "ValidationRegex": "^[0-9]{4}$",
  "TestData": {
    "Valid": [
      "1234",
      "5678"
    ],
    "Invalid": [
      "12345",
      "123s",
      "12x3"
    ]
  }
}