echo 'digraph {

"Yukiji Katsura" -> "Kaoru Kyounosuke" [taillabel = "Childhood friend of"]
"Kaoru Kyounosuke" -> "Yukiji Katsura" [taillabel = "Childhood friend of"]
"Hinagiku Katsura" -> "Yukiji Katsura" [taillabel = "Older sister of"]
}' | dot -Tsvg > output.svg