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"
    ]




    "plainheart@users.noreply.github.com" -- "pissang@users.noreply.github.com" [label=" 167 ", penwidth="10", color="#00688bFF"];
    "plainheart@users.noreply.github.com" -- "ovilia@users.noreply.github.com" [label=" 104 ", penwidth="6", color="#00688bB7"];
    "pissang@users.noreply.github.com" -- "ovilia@users.noreply.github.com" [label=" 103 ", penwidth="6", color="#00688bB7"];
    "yhen@all-my-life.cn" -- "niall.pemberton@gmail.com" [label=" 65 ", penwidth="3", color="#00688b82"];
    "zwl.sjtu@gmail.com" -- "piotrzarzycki21@gmail.com" [label=" 7 ", penwidth="1", color="#00688b4C"];
    "yhen@all-my-life.cn" -- "zwl.sjtu@gmail.com" [label=" 4 ", penwidth="1", color="#00688b4C"];
    "yhen@all-my-life.cn" -- "piotrzarzycki21@gmail.com" [label=" 4 ", penwidth="1", color="#00688b4C"];
    "niall.pemberton@gmail.com" -- "zwl.sjtu@gmail.com" [label=" 4 ", penwidth="1", color="#00688b4C"];
    "niall.pemberton@gmail.com" -- "piotrzarzycki21@gmail.com" [label=" 4 ", penwidth="1", color="#00688b4C"];
    "plainheart@users.noreply.github.com" -- "zwl.sjtu@gmail.com" [label=" 3 ", penwidth="1", color="#00688b4C"];
    "plainheart@users.noreply.github.com" -- "piotrzarzycki21@gmail.com" [label=" 3 ", penwidth="1", color="#00688b4C"];
    "zwl.sjtu@gmail.com" -- "pissang@users.noreply.github.com" [label=" 3 ", penwidth="1", color="#00688b4C"];
    "pissang@users.noreply.github.com" -- "piotrzarzycki21@gmail.com" [label=" 3 ", penwidth="1", color="#00688b4C"];

}