edge { arrowstyle: filled; }
graph {
  colorscheme: x11;
  flow: south;
  title: GRAPH_0;
}

[ a ] --> [ b ]
[ a ] --> [ c ]
[ a ] --> [ d ]
[ my node /* not a comment */ ] --> [ b ]
[ b ] --> [ u ]
[ c ] --> [ u ]
[ d ] --> [ u ]
