echo 'digraph {

"Hix" -> "Tengaar" [taillabel = "Girlfriend of"]
"Zorak" -> "Tengaar" [taillabel = "Daughter of"]
"Tengaar" -> "Hix" [taillabel = "Boyfriend of"]
"Tengaar" -> "Zorak" [taillabel = "Father of"]
}' | dot -Tsvg > output.svg