echo 'digraph {

"Tatsumi Oga" -> "Aoi Kunieda" [taillabel = "In love with"]
"Kouta Kunieda" -> "Aoi Kunieda" [taillabel = "Older sister of"]
"Kaiser de Emperana Beelzebub IV" -> "Tatsumi Oga" [taillabel = "contracted to"]
"Aoi Kunieda" -> "Tatsumi Oga" [taillabel = "Classmate of"]
"Hajime Kanzaki" -> "Tatsumi Oga" [taillabel = "Classmate of"]
"Shintarou Natsume" -> "Tatsumi Oga" [taillabel = "Classmate of"]
"Tatsuya Himekawa" -> "Tatsumi Oga" [taillabel = "Classmate of"]
"Oga's Mother" -> "Tatsumi Oga" [taillabel = "Son of"]
"Oga's Father" -> "Tatsumi Oga" [taillabel = "Son of"]
"Misaki Oga" -> "Tatsumi Oga" [taillabel = "Younger Brother of "]
"Aoi Kunieda" -> "Kouta Kunieda" [taillabel = "Younger brother of"]
}' | dot -Tsvg > output.svg