echo 'digraph {

"Natsuki Sakurazuka" -> "Kirihiko Takashima" [taillabel = "Classmate of"]
"Tsukumo Sakurazuka" -> "Natsuki Sakurazuka" [taillabel = "Older sister of"]
"Kuurin Nagi" -> "Natsuki Sakurazuka" [taillabel = "Classmate of"]
"Kirihiko Takashima" -> "Natsuki Sakurazuka" [taillabel = "Classmate of"]
}' | dot -Tsvg > output.svg