echo 'digraph {

"Aoi Kunieda" -> "Kouta Kunieda" [taillabel = "Younger brother of"]
"Tatsumi Oga" -> "Aoi Kunieda" [taillabel = "In love with"]
"Kouta Kunieda" -> "Aoi Kunieda" [taillabel = "Younger Sister of"]
}' | dot -Tsvg > output.svg