digraph poison {
    "Substrate PPM" -> { "GenericCompound 1" "GenericCompound 8" "GenericCompound 17" };
    "Substrate PPM" [style=filled, fillcolor="0.33,0.3,0.9"];
    "GenericCompound 1" -> { "GenericCompound 2" "GenericCompound 3" "GenericCompound 6" };
    "GenericCompound 6" -> { "GenericCompound 7" };
    "GenericCompound 6" [style=filled, fillcolor="0,0.5,0.9"];
    "GenericCompound 7" [style=filled, fillcolor="0,1,0.9"];
    "GenericCompound 8" -> { "GenericCompound 9" "GenericCompound 10" "GenericCompound 12" "GenericCompound 15" };
    "GenericCompound 10" -> { "GenericCompound 11" };
    "GenericCompound 12" [style=filled, fillcolor="0,0.25,0.9"];
    "GenericCompound 15" -> { "GenericCompound 16" };
    "GenericCompound 15" [style=filled, fillcolor="0,0.5,0.9"];
    "GenericCompound 16" [style=filled, fillcolor="0,1,0.9"];
    "GenericCompound 17" -> { "GenericCompound 18" "GenericCompound 19" "GenericCompound 25" };
    "GenericCompound 19" -> { "GenericCompound 20" };
    "GenericCompound 20" -> { "GenericCompound 21" };
    "GenericCompound 25" -> { "GenericCompound 26" "GenericCompound 27" };
    "GenericCompound 26" [style=filled, fillcolor="0,0.5,0.9"];
    "GenericCompound 27" [style=filled, fillcolor="0,1,0.9"];
    "Pred 1" -> { "GenericCompound 26" };
    "Pred 1" [style=filled, fillcolor="0.66,0.5,0.9"];
    "Pred 2" -> { "GenericCompound 26" "GenericCompound 27" };
    "Pred 2" [style=filled, fillcolor="0.66,0.1,0.9"];
    "Pred 3" -> { "GenericCompound 6" "GenericCompound 7" };
    "Pred 3" [style=filled, fillcolor="0.66,0.25,0.9"];
    "Pred 4" -> { "GenericCompound 12" "GenericCompound 16" };
    "Pred 4" [style=filled, fillcolor="0.66,0.35,0.9"];
}