echo 'digraph {

"Narue Nanase" -> "Kanaka Nanase" [taillabel = "Sister of"]
"Kazuto Izuka" -> "Narue Nanase" [taillabel = "In love with"]
"Kanaka Nanase" -> "Narue Nanase" [taillabel = "Sister of"]
}' | dot -Tsvg > output.svg