{
  "id": "http://example.com/base",
  "form": {
    "id": "http://example.com/base#one",
    "things": [
      {
        "id": "http://example.com/base#one/two"
      },
      {
        "id": "http://example.com/base#three"
      },
      {
        "id": "http://example.com/four#five",
      },
      {
        "id": "http://example.com/acid#six",
      }
    ]
  }
}