digraph G
{
	subgraph cluster_0
	{
		graph
		[
			label = "hello world"
		]
		a -> b
		a -> c
		graph
		[
			color = "hotpink"
		]
	}
	subgraph cluster_1
	{
		graph
		[
			label = "MSDOT"
		]
		graph
		[
			style = "dashed"
		]
		graph
		[
			color = "purple"
		]
		x -> y
		x -> z
		y -> z
		y -> q
	}
	top -> a
	top -> y
	y -> b
}
