echo 'digraph {

"Youko Tsubaki" -> "Akira Tsubaki" [taillabel = "Younger Brother of"]
"Kouhei Ueno" -> "Akira Tsubaki" [taillabel = "Friend of"]
"Mikoto Urabe" -> "Akira Tsubaki" [taillabel = "Boyfriend of"]
"Ayuko Oka" -> "Mikoto Urabe" [taillabel = "Friend of"]
"Akira Tsubaki" -> "Mikoto Urabe" [taillabel = "Girlfriend of"]
"Ayuko Oka" -> "Kouhei Ueno" [taillabel = "Boyfriend of"]
"Akira Tsubaki" -> "Youko Tsubaki" [taillabel = "Older sister of"]
}' | dot -Tsvg > output.svg