echo 'digraph {

"Skull (adult)" -> "Skull" [taillabel = "Younger Version of"]
"Reborn" -> "Skull" [taillabel = ""Kohai""]
"Reborn (adult)" -> "Reborn" [taillabel = "Younger Version of"]
"Tsunayoshi Sawada" -> "Reborn" [taillabel = "Tutor to "]
"Skull" -> "Skull (adult)" [taillabel = "Older Version of"]
}' | dot -Tsvg > output.svg