Better clarified here: https://elmiram.github.io/anime-professions/

>The headline: 17 jobs anime never names

>Renderable ISCO occupations with zero confirmed mentions — even across millions of dialogue lines. Note: our method detects named jobs; some of these are surely shown but never labeled.

Though I’m not curious enough to actually go through and confirm if the series does in fact fail to mention the job names, or if it’s an error on the classification llm.

Another "never named" is hotel receptionist which is also wrong when Apocalypse Hotel was a recent smash-hit.

Funny, I saw that and instantly came to point out there are entire anime around this conceit, only to see it was already here.

If your semantic analysis is messing up something this trivially provable, the rest of it is probably worthless too.