digraph 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"
    ]

    "core" [fillcolor="deepskyblue2"];
    "mbp-with-mbo" [fillcolor="deepskyblue2"];
    "mbp-only" [fillcolor="deepskyblue2"];



    "mbp-only" -> "core" [label=" 16 ", penwidth="10", color="#00688bFF"];
    "mbp-with-mbo" -> "core" [label=" 8 ", penwidth="5", color="#00688bA5"];
    "mbp-with-mbo" -> "mbp-only" [label=" 6 ", penwidth="3", color="#00688b82"];

}