I wonder if anyone has ever run this system on Lewis Carrol's Jabberwocky[1] or even something like Anthony Burgess's A Clockwork Orange, both of which contain a large number of made up words/slang/re-use.

I remember that when I first read A Clockwork Orange, it took me a while but I finally started to understand the meanings of those words/phrases (though I may not have every encountered them before.) It did feel like my brain was re-wiring itself to a new language. It'd be interesting to see how some type of language AI would treat these works.

https://en.wikipedia.org/wiki/Jabberwocky

edited to add there's a wiki article on the language of A Clockwork Orange, Nadsat: https://en.wikipedia.org/wiki/Nadsat