echo 'digraph {

"Yukio Okumura" -> "Shirou Fujimoto" [taillabel = "Adoptive father of"]
"Rin Okumura" -> "Shirou Fujimoto" [taillabel = "Adoptive father of"]
"Shura Kirigakure" -> "Shirou Fujimoto" [taillabel = "Mentor 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"]
"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"]
"Rin Okumura" -> "Shura Kirigakure" [taillabel = "Mentor of"]
}' | dot -Tsvg > output.svg