echo 'digraph {

"Kouhei Kagami" -> "Mr. Kagami" [taillabel = "Father of"]
"Mr. Kagami" -> "Kouhei Kagami" [taillabel = "Son of"]
"Mrs. Kagami" -> "Kouhei Kagami" [taillabel = "Son of"]
}' | dot -Tsvg > output.svg