echo 'digraph {

"Riko Suminoe" -> "Ako Suminoe" [taillabel = "Twin Sister of"]
"Keita Suminoe" -> "Ako Suminoe" [taillabel = "In love with"]
"Keita Suminoe" -> "Ako Suminoe" [taillabel = "Step-sister of"]
"Ako Suminoe" -> "Riko Suminoe" [taillabel = "Twin Sister of"]
"Keita Suminoe" -> "Riko Suminoe" [taillabel = "In love with"]
"Keita Suminoe" -> "Riko Suminoe" [taillabel = "Step-sister of"]
"Yuzuki Kiryuu" -> "Keita Suminoe" [taillabel = "Boyfriend of"]
}' | dot -Tsvg > output.svg