graph G {
    compound="true"
    rankdir="TB"
    bgcolor="white"
    fontname="Tahoma"

    node [
        fixedsize="false"
        fontname="Tahoma"
        color="white"
        fillcolor="deepskyblue2"
        fontcolor="black"
        shape="box"
        style="filled"
        penwidth="1.0"
    ]
    edge [
        fontname="Arial"
        color="#00688b"
        fontcolor="black"
        fontsize="12"
        arrowsize="0.5"
        penwidth="1.0"
    ]




    "tough" -- "tuftool" [label=" 16 ", penwidth="10", color="#00688bFF"];
    "tough-kms" -- "tuftool" [label=" 14 ", penwidth="8", color="#00688bDB"];
    "tough" -- "tough-kms" [label=" 14 ", penwidth="8", color="#00688bDB"];
    "tough-ssm" -- "tuftool" [label=" 10 ", penwidth="6", color="#00688bB7"];
    "tough-ssm" -- "tough-kms" [label=" 10 ", penwidth="6", color="#00688bB7"];
    "tough" -- "tough-ssm" [label=" 10 ", penwidth="6", color="#00688bB7"];
    "tough/src" -- "tough" [label=" 6 ", penwidth="3", color="#00688b82"];
    "tuftool/src" -- "tough" [label=" 4 ", penwidth="2", color="#00688b70"];
    "tuftool/src" -- "tough/src" [label=" 4 ", penwidth="2", color="#00688b70"];
    "tough/src" -- "tuftool" [label=" 3 ", penwidth="1", color="#00688b5E"];
    "tough/src" -- "tough-kms" [label=" 3 ", penwidth="1", color="#00688b5E"];
    "tough/src" -- "tough-ssm" [label=" 3 ", penwidth="1", color="#00688b5E"];
    "tuftool/src" -- "tuftool" [label=" 3 ", penwidth="1", color="#00688b5E"];
    "tuftool/src" -- "tough-kms" [label=" 3 ", penwidth="1", color="#00688b5E"];
    "tuftool/src" -- "tough-ssm" [label=" 3 ", penwidth="1", color="#00688b5E"];
    "tough-kms/src" -- "tuftool" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-kms/src" -- "tough-kms" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-kms/src" -- "tough-ssm" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-kms/src" -- "tough" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-kms/src" -- "tough/src" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-ssm/src" -- "tuftool" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-ssm/src" -- "tough-kms" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-ssm/src" -- "tough-ssm" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-ssm/src" -- "tough" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-ssm/src" -- "tough/src" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tough-ssm/src" -- "tough-kms/src" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tuftool/src" -- "tough-kms/src" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "tuftool/src" -- "tough-ssm/src" [label=" 2 ", penwidth="1", color="#00688b5E"];
    "ROOT" -- "tuftool" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "tough-kms" -- "ROOT" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "tough-ssm" -- "ROOT" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "tough" -- "ROOT" [label=" 1 ", penwidth="1", color="#00688b4C"];

}