echo 'digraph {

"Yayoi's Mother" -> "Yayoi's Father" [taillabel = "Husband of"]
"Yayoi Houzuki" -> "Yayoi's Father" [taillabel = "Father of"]
"Yayoi Houzuki" -> "Yayoi's Mother" [taillabel = "Mother of"]
"Yayoi's Father" -> "Yayoi's Mother" [taillabel = "Wife of"]
}' | dot -Tsvg > output.svg