echo 'digraph {

"Touga Kiryuu" -> "Nanami Kiryuu" [taillabel = "Younger Sister of"]
"Touga Kiryuu" -> "Nanami Kiryuu" [taillabel = "In love with"]
"Nanami Kiryuu" -> "Touga Kiryuu" [taillabel = "Older Brother of"]
"Kyouichi Saionji" -> "Touga Kiryuu" [taillabel = "Childhood friend of"]
}' | dot -Tsvg > output.svg