petal width<=0.800: Iris-setosa 100% (100.00%)
petal width>0.800
|    petal width<=1.750
|    |    petal length<=5.350: Iris-versicolor 88% (108.57%)
|    |    petal length>5.350: Iris-virginica 100% (122.73%)
|    petal width>1.750
|    |    petal length<=4.850: Iris-virginica 33% (34.85%)
|    |    petal length>4.850: Iris-virginica 100% (104.55%)

