echo 'digraph {

"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"]
"Yukio Okumura" -> "Rin Okumura" [taillabel = "Twin Brother of"]
"Rin Okumura (child)" -> "Rin Okumura" [taillabel = "Older Version of"]
"Amaimon" -> "Rin Okumura" [taillabel = "Half-brother of"]
"Mephisto Pheles" -> "Rin Okumura" [taillabel = "Half-brother of"]
"Satan" -> "Rin Okumura" [taillabel = "Son of"]
"Behemoth" -> "Amaimon" [taillabel = "Master of"]
"Rin Okumura" -> "Amaimon" [taillabel = "Half-brother of"]
"Mephisto Pheles" -> "Amaimon" [taillabel = "Brother of"]
"Yukio Okumura" -> "Amaimon" [taillabel = "Half-brother of"]
"Amaimon" -> "Mephisto Pheles" [taillabel = "Brother of"]
"Rin Okumura" -> "Mephisto Pheles" [taillabel = "Half-brother of"]
"Yukio Okumura" -> "Mephisto Pheles" [taillabel = "Half-brother of"]
"Rin Okumura (child)" -> "Yukio Okumura (child)" [taillabel = "Twin Brother of"]
"Yukio Okumura" -> "Yukio Okumura (child)" [taillabel = "Younger Version of"]
}' | dot -Tsvg > output.svg