echo 'digraph {

"Mariko Shinobu" -> "Aya Misaki" [taillabel = "Rival of"]
"Aya Misaki" -> "Mariko Shinobu" [taillabel = "Rival of"]
"Nanako Misono" -> "Mariko Shinobu" [taillabel = "Friend of"]
}' | dot -Tsvg > output.svg