digraph g { node [shape = record]; subgraph cluster0 { n12 [label = "|12|"]; n13 [label = "|13|"]; n18 [label = "|18|"]; n2 [label = "|2|"]; n23 [label = "|23|"]; n3 [label = "|3|"]; n4 [label = "|4|"]; n5 [label = "|5|"]; n6 [label = "|6|"]; n7 [label = "|7|"]; n8 [label = "|8|"]; "n3":f0 -> "n2":f1; "n3":f2 -> "n4":f1; "n5":f0 -> "n3":f1; "n5":f2 -> "n7":f1; "n6":f0 -> "n12":f1; "n6":f2 -> "n13":f1; "n7":f0 -> "n6":f1; "n7":f2 -> "n8":f1; "n8":f0 -> "n23":f1; "n8":f2 -> "n18":f1; } }