// pagerank_plot1
digraph {
	0 [label=0]
	1 [label=1]
	2 [label=2]
	3 [label=3]
	4 [label=4]
	5 [label=5]
	6 [label=6]
	0 -> 1
	0 -> 5
	1 -> 2
	2 -> 0
	2 -> 3
	3 -> 0
	4 -> 2
}