{
  "departments": [
    {
      "name": "engineering",
      "employees": [
        {"id": 1, "name": "john_doe", "email": "john@example.com"},
        {"id": 2, "name": "jane_smith", "email": "jane@test.org"}
      ]
    },
    {
      "name": "marketing",
      "employees": [
        {"id": 3, "name": "bob_wilson", "email": "bob@example.com"},
        {"id": 4, "name": "alice_jones", "email": "alice@test.org"}
      ]
    },
    {
      "name": "sales",
      "employees": [
        {"id": 5, "name": "charlie_brown", "email": "charlie@sample.net"}
      ]
    }
  ]
}