{
  "employees": [
    {
      "name": "Alice",
      "skills": ["Nurse", "FirstAid"],
      "unavailableDates": ["2025-09-25"],
      "undesiredDates": ["2025-09-27"],
      "desiredDates": ["2025-09-28"]
    },
    {
      "name": "Bob",
      "skills": ["Doctor"],
      "unavailableDates": [],
      "undesiredDates": [],
      "desiredDates": ["2025-09-25", "2025-09-26"]
    },
    {
      "name": "Charlie",
      "skills": ["Nurse"],
      "unavailableDates": ["2025-09-26"],
      "undesiredDates": [],
      "desiredDates": []
    }
  ],
  "shifts": [
    {
      "id": "S1",
      "start": "2025-09-25T08:00:00",
      "end": "2025-09-25T16:00:00",
      "location": "Hospital A",
      "requiredSkill": "Nurse",
      "employee": null
    },
    {
      "id": "S2",
      "start": "2025-09-25T16:00:00",
      "end": "2025-09-25T23:59:59",
      "location": "Hospital A",
      "requiredSkill": "Doctor",
      "employee": null
    },
    {
      "id": "S3",
      "start": "2025-09-26T08:00:00",
      "end": "2025-09-26T16:00:00",
      "location": "Hospital B",
      "requiredSkill": "Nurse",
      "employee": null
    }
  ],
  "score": null,
  "solverStatus": null
}