echo 'digraph {

"Soyogi Kusamakura" -> "Akari Kusamakura" [taillabel = "Younger Sister of"]
"Tsumugi Kusamakura" -> "Akari Kusamakura" [taillabel = "Younger Sister of"]
"Akari Kusamakura" -> "Soyogi Kusamakura" [taillabel = "Younger Sister of"]
"Tsumugi Kusamakura" -> "Soyogi Kusamakura" [taillabel = "Younger Sister of"]
"Akari Kusamakura" -> "Tsumugi Kusamakura" [taillabel = "Younger Sister of"]
"Soyogi Kusamakura" -> "Tsumugi Kusamakura" [taillabel = "Younger Sister of"]
}' | dot -Tsvg > output.svg