echo 'digraph {

"Sakuya Hoshi" -> "Akeno Kasugamori" [taillabel = "girlfriend of"]
"Tsukumo Sakurazuka" -> "Sakuya Hoshi" [taillabel = "classmate of"]
"Akeno Kasugamori" -> "Sakuya Hoshi" [taillabel = "boyfriend of"]
}' | dot -Tsvg > output.svg