echo 'digraph {

"Suguru Koshigaya" -> "Natsumi Koshigaya" [taillabel = "Younger Sister of"]
"Komari Koshigaya" -> "Natsumi Koshigaya" [taillabel = "Younger Sister of"]
"Yukiko Koshigaya" -> "Natsumi Koshigaya" [taillabel = "Daughter of"]
"Natsumi Koshigaya" -> "Komari Koshigaya" [taillabel = "Older sister of"]
}' | dot -Tsvg > output.svg