pr1_graph4.dot

digraph G {
    Parameter_0 -> Add_2
    Parameter_1 -> Add_2
    Add_2 -> Negative_3 -> Negative_4
    Parameter_0 [shape=box color=blue]
    Parameter_1 [shape=box color=blue]
    Add_2 [shape=ellipse color=black]
    Negative_3 [shape=ellipse color=black]
    Negative_4 [shape=ellipse color=black]
}