dot.exe -Tgif -o b.gif b.dot
Input:

digraph grafo {
"0" [ fontname=Verdana height=0.1 width=0.1 shape=box label = "seres" ];
"1" [ fontname=Verdana height=0.1 width=0.1 shape=box label = "vivos" ];
"2" [ fontname=Verdana height=0.1 width=0.1 shape=box label = "animales" ];
"3" [ fontname=Verdana height=0.1 width=0.1 shape=box label = "pensantes" ];
"4" [ fontname=Verdana height=0.1 width=0.1 shape=box label = "nopensantes" ];
"5" [ fontname=Verdana height=0.1 width=0.1 shape=box label = "plantas" ];
"6" [ fontname=Verdana height=0.1 width=0.1 shape=box label = "inertes" ];
"7" [ fontname=Verdana height=0.1 width=0.1 shape=box label = "montaņas" ];
"8" [ fontname=Verdana height=0.1 width=0.1 shape=box label = "lagos" ];
"0" -> "1";
"0" -> "6";
"1" -> "2";
"1" -> "5";
"2" -> "3";
"2" -> "4";
"6" -> "7";
"6" -> "8";
}