echo 'digraph {

"Ayane Shirakawa" -> "Kotone Shirakawa" [taillabel = "Younger Sister of"]
"Kazushi Sudou" -> "Kotone Shirakawa" [taillabel = "Childhood friend of"]
"Kotone Shirakawa" -> "Ayane Shirakawa" [taillabel = "Older Sister of"]
}' | dot -Tsvg > output.svg