digraph api_comb {
    graph [K=0.8, center,
        label="OpenResty within Yahoo! China",
        dpi=100.0, fontname="consolas"];
    edge [color=red, dir=both];
    cloud [label="OpenResty cloud", style="filled", shape="house", fillcolor="#f1e1f4", fontname="consolas"]
    php [label="Yahoo.cn frontend\n(PHP)"]
    php ->
}

