data.json

{
  "name": "petal length (cm) > 2.45000004768",
  "children": [
    {
      "name": "petal width (cm) > 1.75",
      "children": [
        {
          "name": "petal length (cm) > 4.85000038147",
          "children": [
            {
              "name": "0 of setosa, 0 of versicolor, 43 of virginica"
            },
            {
              "name": "0 of setosa, 1 of versicolor, 2 of virginica"
            }
          ]
        },
        {
          "name": "petal length (cm) > 4.94999980927",
          "children": [
            {
              "name": "0 of setosa, 2 of versicolor, 4 of virginica"
            },
            {
              "name": "0 of setosa, 47 of versicolor, 1 of virginica"
            }
          ]
        }
      ]
    },
    {
      "name": "50 of setosa, 0 of versicolor, 0 of virginica"
    }
  ]
}