echo 'digraph {

"Isane Kotetsu " -> "Kiyone Kotetsu" [taillabel = "Sister of"]
"Isane Kotetsu " -> "Kiyone Kotetsu" [taillabel = "the current lieutenant of"]
"Kiyone Kotetsu" -> "Isane Kotetsu " [taillabel = "Sister of"]
"Retsu Unohana" -> "Isane Kotetsu " [taillabel = "the lieutenant of"]
"Retsu Unohana" -> "Isane Kotetsu " [taillabel = "the former lieutenant of"]
"Kiyone Kotetsu" -> "Isane Kotetsu " [taillabel = "Captain of"]
}' | dot -Tsvg > output.svg