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="#DC143C"
        fontcolor="black"
        fontsize="12"
        arrowsize="0.5"
        penwidth="1.0"
    ]




    "proposals" -- "src" [label=" 494 ", penwidth="10", color="#DC143CFF"];
    "extensions" -- "src" [label=" 298 ", penwidth="6", color="#DC143CB7"];
    "conf" -- "extensions" [label=" 162 ", penwidth="3", color="#DC143C82"];
    "conf" -- "src" [label=" 59 ", penwidth="1", color="#DC143C5E"];
    "conf" -- "proposals" [label=" 50 ", penwidth="1", color="#DC143C5E"];

}