digraph g {
"start" [ label = "MWGC-" ];
"n1" [ label = "WC-MG" ];
"n2" [ label = "MWC-G" ];
"n3" [ label = "C-MWG" ];
"n4" [ label = "W-MGC" ];
"n5" [ label = "MGC-W" ];
"n6" [ label = "MWG-C" ];
"n7" [ label = "G-MWC" ];
"n8" [ label = "MG-WC" ];
"n9" [ label = "-MWGC" ];
"start" -> "n1" [ label = "g" ];
"n1" -> "start" [ label = "g" ];
subgraph l { rank = same; "n3" "n4" }
subgraph r { rank = same; "n5" "n6" }
"n1" -> "n2" [ label = "m" ];
"n2" -> "n1" [ label = "m" ];
"n2" -> "n3" [ label = "w" ];
"n3" -> "n2" [ label = "w" ];
"n2" -> "n4" [ label = "c" ];
"n4" -> "n2" [ label = "c" ];
"n3" -> "n5" [ label = "g" ];
"n5" -> "n3" [ label = "g" ];
"n4" -> "n6" [ label = "g" ];
"n6" -> "n4" [ label = "g" ];
"n5" -> "n7" [ label = "c" ];
"n7" -> "n5" [ label = "c" ];
"n6" -> "n7" [ label = "w" ];
"n7" -> "n6" [ label = "w" ];
"n7" -> "n8" [ label = "m" ];
"n8" -> "n7" [ label = "m" ];
"n8" -> "n9" [ label = "g" ];
"n9" -> "n8" [ label = "g" ];
}