digraph graph_19
{
	size = "6,6"

	node [shape = square]
	edge [color = red]

	node_19_1 -> node_19_2

	subgraph subgraph_19_3
	{
		node [shape = star]
		edge [color = green]

		node_19_4 -> node_19_5

		subgraph subgraph_19_6
		{
			node [shape = circle]
			edge [color = blue]

			node_19_7 -> node_19_8
		}

		node_19_9 -> node_19_10
	}

	node_19_11 -> node_19_12
}