echo 'digraph {

"Momoka Kurumi" -> "Erika Kurumi" [taillabel = "Younger Sister of"]
"Erika Kurumi" -> "Momoka Kurumi" [taillabel = "Younger Sister of"]
"Erika Kurumi" -> "Momoka Kurumi" [taillabel = "Older Sister of"]
}' | dot -Tsvg > output.svg