digraph G {
  bgcolor="transparent";
  rankdir="TB";
  fontname="Helvetica,Arial,sans-serif";
  node [fontname="Helvetica,Arial,sans-serif"; fontsize=10];
  edge [fontname="Helvetica,Arial,sans-serif"; fontsize=9; fontcolor="dimgrey";
        labelfontcolor="blue"; labeldistance=2.0];

  Example [label="Example"];}