echo 'digraph {

"The Hundred Faced Hassan" -> "King Hassan" [taillabel = "Progenitor  of"]
"Hassan of Serenity" -> "King Hassan" [taillabel = "Progenitor  of"]
"True Assassin" -> "King Hassan" [taillabel = "Progenitor  of"]
"Kirei Kotomine" -> "The Hundred Faced Hassan" [taillabel = "Servant of"]
"Zouken Matou" -> "True Assassin" [taillabel = "Servant of"]
}' | dot -Tsvg > output.svg