echo 'digraph {

"Hiro Iokawa" -> "Shouko Nogami" [taillabel = "Former girlfriend of"]
"Shouko Nogami" -> "Hiro Iokawa" [taillabel = "Former boyfriend of"]
"Karada Iokawa" -> "Hiro Iokawa" [taillabel = "Older Brother of"]
}' | dot -Tsvg > output.svg