digraph EXAMPLE
{
  bgcolor="black";
//  color="white";
//  fontcolor="white";

  node [shape="oval", color="white", fontcolor="white"];
  edge [color="white"];
//  packmode=node;
//  ranksep = 1.0;


  acqua [label="Acqua", pos="-100,100", shape="plaintext"];
  vino [label="Vino", pos="100,100", shape="plaintext"];
  bicchiere [label="Bicchiere", pos="0,0"];
  bere [label="Bere", pos="-100,-100", shape="plaintext"];
  buttare [label="Buttare", pos="100,-100", shape="plaintext"];
  

  acqua -> bicchiere	[tailport="e", headport="nw"];
  vino -> bicchiere	[tailport="s", headport="e", penwidth="3"];
  bicchiere -> buttare	[color="red", penwidth="4"];
  bicchiere -> bere;
}