echo 'digraph {

"Natsumi Murakami" -> "Chizuru Naba" [taillabel = "Roommate of"]
"Ayaka Yukihiro" -> "Chizuru Naba" [taillabel = "Roommate of"]
"Chizuru Naba" -> "Ayaka Yukihiro" [taillabel = "Roommate of"]
"Natsumi Murakami" -> "Ayaka Yukihiro" [taillabel = "Roommate of"]
"Chizuru Naba" -> "Natsumi Murakami" [taillabel = "Roommate of"]
"Ayaka Yukihiro" -> "Natsumi Murakami" [taillabel = "Roommate of"]
}' | dot -Tsvg > output.svg