echo 'digraph {

"Renko Usami" -> "Maribel Hearn" [taillabel = "Friend of"]
"Maribel Hearn" -> "Renko Usami" [taillabel = "Friend of"]
"Sumireko Usami" -> "Renko Usami" [taillabel = "descendant"]
}' | dot -Tsvg > output.svg