echo 'digraph {

"Hiroyasu Ueda" -> "Yumi Oomura" [taillabel = "Girlfriend of"]
"Yumi Oomura" -> "Hiroyasu Ueda" [taillabel = "[s]Boyfriend[/s] of"]
"Yumi Oomura" -> "Hiroyasu Ueda" [taillabel = "Boyfriend of"]
}' | dot -Tsvg > output.svg