echo 'digraph {

"Sadaakira" -> "Fujiwara no Takaiko" [taillabel = "Mother of"]
"Fujiwara no Takaiko" -> "Sadaakira" [taillabel = "son of"]
"Yasuko" -> "Sadaakira" [taillabel = "Husband of"]
}' | dot -Tsvg > output.svg