petal width<=0.800: Iris-setosa (100.00%)
petal width>0.800
|    petal width<=1.750
|    |    petal length>4.950: Iris-virginica (66.67%)
|    |    petal length<=4.950
|    |    |    sepal length<=5.150: Iris-versicolor (80.00%)
|    |    |    sepal length>5.150: Iris-versicolor (100.00%)
|    petal width>1.750
|    |    petal length<=4.950: Iris-virginica (83.33%)
|    |    petal length>4.950: Iris-virginica (100.00%)

