Cynically, i wonder if a translation of that text was actually fed in/available to the translation process.
I mean texts already translated into other languages would presumably be one of the most obvious things to feed in as training data.
I mean texts already translated into other languages would presumably be one of the most obvious things to feed in as training data.
MT world runs on data, it includes as much as it can, and a book translation wouldn't be included only if its translations are not readily available in digital form - and pretty much all famous books have been digitized.