echo 'digraph {

"Koyomi Shirakawa" -> "Kotori Shirakawa" [taillabel = "Younger Sister of"]
"Sayaka Shirakawa" -> "Kotori Shirakawa" [taillabel = "Cousin of"]
"Kotori Shirakawa" -> "Sayaka Shirakawa" [taillabel = "Cousin of"]
"Kotori Shirakawa" -> "Koyomi Shirakawa" [taillabel = "Younger Sister of"]
}' | dot -Tsvg > output.svg