Nested Example

Item 1
Item 2
Item 3
Item 3.1
Item 3.2
Item 3.3
Item 4
Item 5
Item 6
Item 7
Item 8
Item 9
Item 10 
[
  {
    "id": 1,
    "text": "Item 1"
  },
  {
    "id": 2,
    "text": "Item 2"
  },
  {
    "id": 3,
    "text": "Item 3",
    "subitems": [
      {
        "id": 3.1,
        "text": "Item 3.1"
      },
      {
        "id": 3.2,
        "text": "Item 3.2"
      },
      {
        "id": 3.3,
        "text": "Item 3.3"
      }
    ]
  },
  {
    "id": 4,
    "text": "Item 4"
  }
]
[
  {
    "id": 5,
    "text": "Item 5"
  },
  {
    "id": 6,
    "text": "Item 6"
  },
  {
    "id": 7,
    "text": "Item 7"
  },
  {
    "id": 8,
    "text": "Item 8"
  },
  {
    "id": 9,
    "text": "Item 9"
  },
  {
    "id": 10,
    "text": "Item 10"
  }
]