echo 'digraph {

"Keiko Ozawa" -> "Ayaka Ozawa" [taillabel = "Daughter of"]
"Haruka Ozawa" -> "Ayaka Ozawa" [taillabel = "Twin Sister of"]
"Keiko Ozawa" -> "Haruka Ozawa" [taillabel = "Daughter of"]
"Ayaka Ozawa" -> "Haruka Ozawa" [taillabel = "Twin Sister of"]
"Haruka Ozawa" -> "Keiko Ozawa" [taillabel = "Mother of"]
"Ayaka Ozawa" -> "Keiko Ozawa" [taillabel = "Mother of"]
}' | dot -Tsvg > output.svg