The redundancy rules [...] present a hierarchy operating on a number of levels. Of these, the contextual level and the semantically subcategorizing levels are by now already quite traditional. [...] On the latter level, there would be universal categories ("proper name", "animate", "human"), categories extensively used in the particular language ("local[ity]" as a sort of semantic component) and quite special categories (belonging to a particular paradigm or to a logically connected group of paradigms, e.g. "mythological creature or ghost or highly placed person").
- Poldauf (2004), a pag.23