echo 'digraph {

"Zenya Okinaga" -> "Kouhei Kitani" [taillabel = "Servant of"]
"Kouhei Kitani" -> "Zenya Okinaga" [taillabel = "Master to"]
"Kunihito Okinagi" -> "Zenya Okinaga" [taillabel = "Son of"]
}' | dot -Tsvg > output.svg