echo 'digraph {

"Abe no Seimei" -> "Abe no Masahiro" [taillabel = "grandson of"]
"Abe no Yoshimasa" -> "Abe no Masahiro" [taillabel = "son of"]
"Abe no Masahiro" -> "Abe no Seimei" [taillabel = "grandfather of"]
"Abe no Yoshimasa" -> "Abe no Seimei" [taillabel = "Father of"]
"Abe no Seimei" -> "Abe no Yoshimasa" [taillabel = "son of"]
"Abe no Masahiro" -> "Abe no Yoshimasa" [taillabel = "Father of"]
}' | dot -Tsvg > output.svg