digraph sample_jp {
  graph[overlap=false, splines=true]
  node [fontname="MSUIGOTHIC.ttf"]
  "商品" [shape=record, label="{商品|商品カテゴリID(FK)\l名前\l金額\l税\l商品区分\l}"]
  "商品カテゴリ" [shape=record, label="{商品カテゴリ|商品カテゴリ名\l}"]
  "注文" [shape=record, label="{注文|顧客ID(FK)\l商品ID(FK)\l注文数\l}"]
  "顧客" [shape=record, label="{顧客|名前\l電話番号\l}"]

  "商品" -> "注文" [arrowtail=none arrowhead=dot headlabel="n" taillabel="1"]
  "商品カテゴリ" -> "商品" [arrowtail=none arrowhead=dot headlabel="n" taillabel="1"]
  "顧客" -> "注文" [arrowtail=none arrowhead=dot headlabel="n" taillabel="1"]

}