echo 'digraph {

"Nao Yokoyama" -> "Minako Satake" [taillabel = "Friend of"]
"Nao Yokoyama" -> "Minako Satake" [taillabel = "Rival of"]
"Minako Satake" -> "Nao Yokoyama" [taillabel = "Rival of"]
"Minako Satake" -> "Nao Yokoyama" [taillabel = "Friend of"]
}' | dot -Tsvg > output.svg