echo 'digraph {

"Lorenzo Orsini" -> "Olga" [taillabel = "Wife of"]
"Nicoletta" -> "Olga" [taillabel = "Mother of"]
"Olga" -> "Nicoletta" [taillabel = "Daughter of"]
"Olga" -> "Lorenzo Orsini" [taillabel = "Husband of"]
}' | dot -Tsvg > output.svg