echo 'digraph {

"Kokohime" -> "Hayase" [taillabel = "Twin Sister of"]
"Kishima" -> "Hayase" [taillabel = "Twin Sister of"]
"Kishima" -> "Kokohime" [taillabel = "Twin Sister of"]
"Hayase" -> "Kokohime" [taillabel = "Twin Sister of"]
"Hayase" -> "Kishima" [taillabel = "Twin Sister of"]
"Kokohime" -> "Kishima" [taillabel = "Twin Sister of"]
}' | dot -Tsvg > output.svg