echo 'digraph {

"Toraji Ishida" -> "Iwasa" [taillabel = "the former student of"]
"Makoto Iwasa" -> "Iwasa" [taillabel = "Brother of"]
"Kenzaburo Ishibashi" -> "Toraji Ishida" [taillabel = "Student of"]
"Iwasa" -> "Makoto Iwasa" [taillabel = "Brother of"]
}' | dot -Tsvg > output.svg