echo 'digraph {

"Tsukumo Sakurazuka" -> "Natsuki Sakurazuka (Child)" [taillabel = "Younger Sister of"]
"Natsuki Sakurazuka (Present-day)" -> "Tsukumo Sakurazuka" [taillabel = "younger brother of"]
"Sakuya Hoshi" -> "Tsukumo Sakurazuka" [taillabel = "classmate of"]
"Natsuki Sakurazuka (Year 1999)" -> "Tsukumo Sakurazuka" [taillabel = "younger brother of"]
"Natsuki Sakurazuka (Child)" -> "Tsukumo Sakurazuka" [taillabel = "younger brother of"]
}' | dot -Tsvg > output.svg