echo 'digraph {

"Nanami Kiryuu" -> "Mitsuru Tsuwabuki" [taillabel = "In love with"]
"Touga Kiryuu" -> "Nanami Kiryuu" [taillabel = "Younger Sister of"]
"Touga Kiryuu" -> "Nanami Kiryuu" [taillabel = "In love with"]
}' | dot -Tsvg > output.svg