digraph G {
  graph [label="下駄配列の派生図"]

  getas [label = "下駄配列"];
  new_getas  [label = "新下駄配列"];
  getas_in_fine_weather [label = "日和下駄配列"];
  black_lacquered_getas [label = "黒塗り下駄配列"];
  black_lacquered_getas_made_of_paulownia [label = "黒塗り桐下駄配列"];
  lacquered_getas [label = "塗り下駄配列"];
  new_JIS_getas [label = "新JIS下駄配列"];

  getas -> {
    getas_in_fine_weather
    lacquered_getas
    new_JIS_getas new_getas
    lacquered_getas
  };

  lacquered_getas -> black_lacquered_getas;
  black_lacquered_getas -> black_lacquered_getas_made_of_paulownia;
  black_lacquered_getas_made_of_paulownia -> black_lacquered_getas;

  black_lacquered_getas -> getas_in_fine_weather [style = dotted];
}