echo 'digraph {

"Cheval Grand" -> "Verxina" [taillabel = "Older sister of"]
"Vivlos" -> "Verxina" [taillabel = "Older sister of"]
"Verxina" -> "Vivlos" [taillabel = "Younger Sister of"]
"Cheval Grand" -> "Vivlos" [taillabel = "Younger Sister of"]
}' | dot -Tsvg > output.svg