digraph g { node [shape = record,height=.1]; node0[label = " | G| "]; node1[label = " | E| "]; node2[label = " | B| "]; node3[label = " | F| "]; node4[label = " | R| "]; node5[label = " | H| "]; node6[label = " | Y| "]; node7[label = " | A| "]; node8[label = " | C| "]; "node0":f2 -> "node4":f1; "node0":f0 -> "node1":f1; "node1":f0 -> "node2":f1; "node1":f2 -> "node3":f1; "node2":f2 -> "node8":f1; "node2":f0 -> "node7":f1; "node4":f2 -> "node6":f1; "node4":f0 -> "node5":f1; }