digraph test123 {
	a -> b -> c;
	a -> {x y};
	b [shape=box];
	c [label="hello\nworld",color=blue,fontsize=13,
	fontname="Palatino-Italic",fontcolor=red,style=filled];
	a -> z [label="hi", weight=100];
	x -> z [label="multi-line\nlabel"];
	edge [style=dashed,color=red];
	b -> x;
	{rank=same; b x}
}