echo 'digraph {

"Takashi Kosuda" -> "Yamada" [taillabel = "In love with"]
"Yamada" -> "Takashi Kosuda" [taillabel = "In love with"]
"Kazuki Kosuda" -> "Takashi Kosuda" [taillabel = "younger bother of"]
}' | dot -Tsvg > output.svg