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"
    ]




    "jinsangp@gmail.com" -- "jinspark@amazon.com" [label=" 88 ", penwidth="10", color="#00688bFF"];
    "jinsangp@gmail.com" -- "spacesun@naver.com" [label=" 84 ", penwidth="9", color="#00688bED"];
    "jinspark@amazon.com" -- "spacesun@naver.com" [label=" 69 ", penwidth="7", color="#00688bC9"];
    "jinsangp@gmail.com" -- "cyberjam@gmail.com" [label=" 27 ", penwidth="3", color="#00688b82"];
    "cyberjam@gmail.com" -- "spacesun@naver.com" [label=" 23 ", penwidth="2", color="#00688b70"];
    "jinspark@amazon.com" -- "cyberjam@gmail.com" [label=" 14 ", penwidth="1", color="#00688b5E"];
    "jinsangp@gmail.com" -- "metamorp@gmail.com" [label=" 2 ", penwidth="1", color="#00688b4C"];
    "jinsangp@gmail.com" -- "byungsuk@amazon.com" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "jinsangp@gmail.com" -- "calmssea@gmail.com" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "metamorp@gmail.com" -- "byungsuk@amazon.com" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "metamorp@gmail.com" -- "calmssea@gmail.com" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "metamorp@gmail.com" -- "spacesun@naver.com" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "byungsuk@amazon.com" -- "calmssea@gmail.com" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "byungsuk@amazon.com" -- "spacesun@naver.com" [label=" 1 ", penwidth="1", color="#00688b4C"];
    "calmssea@gmail.com" -- "spacesun@naver.com" [label=" 1 ", penwidth="1", color="#00688b4C"];

}