echo 'digraph {

"Gamakichi" -> "Gamabunta" [taillabel = "Father of"]
"Gamatatsu" -> "Gamabunta" [taillabel = "Father of"]
"Gamabunta" -> "Gamakichi" [taillabel = "Son of"]
"Gamatatsu" -> "Gamakichi" [taillabel = "Older Brother of"]
"Gamabunta" -> "Gamatatsu" [taillabel = "Son of"]
"Gamakichi" -> "Gamatatsu" [taillabel = "Younger Brother of"]
}' | dot -Tsvg > output.svg