echo 'digraph {

"Wigglytuff" -> "Jigglypuff" [taillabel = "Evolves into"]
"Igglybuff" -> "Jigglypuff" [taillabel = "Evolves from"]
"Jigglypuff" -> "Wigglytuff" [taillabel = "Evolves from"]
"Jigglypuff" -> "Igglybuff" [taillabel = "Evolves into"]
}' | dot -Tsvg > output.svg