Correspondence is a framework for interactively visualizing correspondences between items in related structures.
Bracketup is a generic structured textual markup language (one that I have just invented).
This particular page shows the same translation visualisation as http://thinkinghard.com/correspondence/rhoscript/index.html.
(The bracketup source code is similar to, but not quite the same as, the original correspondence-markup source code.)
Mouse over the translations to see the relationships between them.
Using module-simulator.js does add a bit of noise the HTML page source.