echo 'digraph {

"Chiriko Hamano" -> "Kaname Shimura" [taillabel = "Friend of"]
"Moriya-Sensei" -> "Chiriko Hamano" [taillabel = "Student of"]
"Kaname Shimura" -> "Chiriko Hamano" [taillabel = "Friend of"]
}' | dot -Tsvg > output.svg