echo 'digraph {

"Suzuran Hokuto" -> "Chitose Hokuto" [taillabel = "Sister of"]
"Erimo Hokuto" -> "Chitose Hokuto" [taillabel = "Sister of"]
"Chitose Hokuto" -> "Suzuran Hokuto" [taillabel = "Sister of"]
"Erimo Hokuto" -> "Suzuran Hokuto" [taillabel = "Sister of"]
"Chitose Hokuto" -> "Erimo Hokuto" [taillabel = "Sister of"]
"Suzuran Hokuto" -> "Erimo Hokuto" [taillabel = "Sister of"]
}' | dot -Tsvg > output.svg