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

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




    "cws1989@gmail.com" -- "cws1989@7c2d2ea4-b2ba-0d1a-b188-cc8f3e98e63b" [label=" 166 ", penwidth="10", color="#00688bFF"];
    "marc.strapetz@gmail.com" -- "cws1989@gmail.com" [label=" 9 ", penwidth="1", color="#00688b4C"];
    "cws1989@7c2d2ea4-b2ba-0d1a-b188-cc8f3e98e63b" -- "marc.strapetz@gmail.com" [label=" 2 ", penwidth="1", color="#00688b4C"];
    "hanwen@google.com" -- "sop@google.com" [label=" 1 ", penwidth="1", color="#00688b4C"];

}