echo 'digraph {

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