echo 'digraph {

"Sapphire" -> "Ruby" [taillabel = "In love with"]
"Sapphire" -> "Ruby" [taillabel = "Wife of"]
"Ruby" -> "Sapphire" [taillabel = "In love with"]
"Ruby" -> "Sapphire" [taillabel = "Wife of"]
}' | dot -Tsvg > output.svg