Translations:Extension:Graph/Demo/54/en

Editing JSON by hand is fiddly and prone to error. so you should use a JSON checker such as JSONLint or a JSON editor such as the Vega Live Editor to edit JSON before you copy and paste it into the wiki page. If the  tag's data is directly embedded in the page such as the example above, then if you use VisualEditor to edit the page you can directly edit graph data.