echo 'digraph {

"Kei Shinomiya" -> "Aoi Shinomiya" [taillabel = "Younger Brother of"]
"Ryouhei Shinomiya" -> "Aoi Shinomiya" [taillabel = "Older Brother of"]
"Kouhei Shinomiya" -> "Aoi Shinomiya" [taillabel = "Older Brother of"]
"Kouhei Shinomiya" -> "Ryouhei Shinomiya" [taillabel = "Twin Brother of"]
"Kei Shinomiya" -> "Ryouhei Shinomiya" [taillabel = "Younger Brother of"]
"Aoi Shinomiya" -> "Ryouhei Shinomiya" [taillabel = "Younger Brother of"]
"Ryouhei Shinomiya" -> "Kouhei Shinomiya" [taillabel = "Twin Brother of"]
"Kei Shinomiya" -> "Kouhei Shinomiya" [taillabel = "Younger Brother of"]
"Aoi Shinomiya" -> "Kouhei Shinomiya" [taillabel = "Younger Brother of"]
"Aoi Shinomiya" -> "Kei Shinomiya" [taillabel = "Older Brother of"]
"Ryouhei Shinomiya" -> "Kei Shinomiya" [taillabel = "Older Brother of"]
"Kouhei Shinomiya" -> "Kei Shinomiya" [taillabel = "Older Brother of"]
}' | dot -Tsvg > output.svg