echo 'digraph {

"Izumi Sena" -> "Nagisa Sena" [taillabel = "Mother of"]
"Shougo Sena" -> "Nagisa Sena" [taillabel = "Mother of"]
"Seiya Sena" -> "Shougo Sena" [taillabel = "son of"]
"Nagisa Sena" -> "Shougo Sena" [taillabel = "son of"]
"Izumi Sena" -> "Shougo Sena" [taillabel = "Older Brother of"]
"Nagisa Sena" -> "Izumi Sena" [taillabel = "son of"]
"Seiya Sena" -> "Izumi Sena" [taillabel = "son of"]
"Shougo Sena" -> "Izumi Sena" [taillabel = "younger brother of"]
}' | dot -Tsvg > output.svg