echo 'digraph {

"Yukio Okumura" -> "Oomoto" [taillabel = "In love with"]
"Rin Okumura" -> "Yukio Okumura" [taillabel = "Twin Brother of"]
"Yukio Okumura (child)" -> "Yukio Okumura" [taillabel = "Older Version of"]
"Amaimon" -> "Yukio Okumura" [taillabel = "Half-brother of"]
"Mephisto Pheles" -> "Yukio Okumura" [taillabel = "Half-brother of"]
}' | dot -Tsvg > output.svg