edge { arrowstyle: filled; }
graph {
  colorscheme: x11;
  flow: south;
  title: unnamed;
}

[ berlin N | w ] { basename: berlin; }
[ bonn N | S ] { basename: bonn; }

[ bonn.0 ] --> { end: west; start: south; } [ berlin.0 ]
[ bonn.1 ] --> [ berlin.1 ]
