echo 'digraph {

"Marc" -> "Claire" [taillabel = "Wife of"]
"Moor Hesse" -> "Claire" [taillabel = "Sister of"]
"Claire" -> "Moor Hesse" [taillabel = "Sister of"]
"Claire" -> "Marc" [taillabel = "Husband of"]
}' | dot -Tsvg > output.svg