digraph G
{
	label="eyefloss 2005.12.27";
	labelloc=t;
	fontsize=16;
	ranksep=0;
	size="8,10";

	subgraph cluster0
	{
		head0		[shape=polygon,sides=4,skew=.4,label="_ _\no0\n\n/  ~  / "];
		thorax0		[label="thorax"];
		extremity00	[label="extremity[0]"];
		extremity01	[label="extremity[1]"];

		head0 -> thorax0;
		thorax0 -> extremity00;
		thorax0 -> extremity01;

		oxygen0		[label="oxygen"];

		oxygen0 -> head0	[style=bold,label="inhale"];

		label="I try to inhale oxygen";
	}

	head0 -> head1 [style=bold,color="#c0c0c0"];

	subgraph cluster1
	{
		head1		[shape=polygon,sides=4,skew=.4,label="_ _\no0\n\n/  ~  / "];

		carbondioxide1		[label="carbon dioxide"];

		head1 -> carbondioxide1	[style=bold,label="exhale"];

		label="and then I try to\nexhale carbon dioxide.";
	}

	head1 -> head2 [style=bold,color="#c0c0c0"];

	subgraph cluster2
	{
		head2		[shape=polygon,sides=4,skew=.4,label="_ _\no0\n\n/  ~  / "];

		oxygen2		[label="oxygen"];

		carbondioxide2		[label="carbon dioxide"];

		oxygen2 -> head2
		head2 -> carbondioxide2
		carbondioxide2 -> oxygen2	[fontcolor="#800000",style=bold,label="repeat"]

		label="I try to repeat this process\napproximately every three seconds.";
	}

	head2 -> head3 [style=bold,color="#c0c0c0"];

	subgraph cluster3
	{
		head3		[shape=polygon,sides=4,skew=.4,label="_ _\no0\n\n/  ~  / "];
		thorax3		[label="thorax"];
		extremity30	[label="extremity[0]"];
		extremity31	[label="extremity[1]"];

		head3 -> thorax3;
		thorax3 -> extremity30;
		thorax3 -> extremity31;

		label="This is what happens\nwhen I breathe.";
	}
}