echo 'digraph {

"Ivysaur" -> "Bulbasaur" [taillabel = "Evolves into"]
"Venusaur" -> "Ivysaur" [taillabel = "Evolves into"]
"Bulbasaur" -> "Ivysaur" [taillabel = "Evolves from"]
}' | dot -Tsvg > output.svg