digraph G {
	a -> b -> c;
	b -> d;
	a [shape=polygon,sides=5,peripheries=3,color=indigo,style=filled];
	c [shape=polygon,sides=4,skew=.4,label="hello world"];
	d [shape=invtriangle];
	e [shape=polygon,sides=4,distortion=.7];
}
