A new old lexical class

This uncomfortable awareness has been taking shape for some time, so let's spell it out: despite our catechism of only two parts of speech in Koa, it turns out that there's unquestionably a subclass of nominals (or nominal phrases) which behave differently than ordinary nominals in that they do not require a specifier in order to be integrated into syntax. Furthermore, this has clearly been the case since the beginning, but had somehow passed unnoticed! The categories are:

Emphatic Personal Pronouns: nika, seka, taka, nuka, soka, tuka
Correlative Pronouns: tia, toa, tika, toka, hua, huka, nahua, nahuka, naha, naa, naka, coa, coka, poa, poka
Numeral Quantifiers: énapi, lúapi, tátupi; kume néipi, lúakupi, sata límaku hítupi, etm.
General Quantifiers: váhapi, ánopi, náipi, áivapi, pólipi; vísipi, kókopi, póapi, ná(h)api, énepi, áukupi

Speaking generally, then, what we're talking about are "pronominals" -- nominal phrases that are composed of a demonstrative/quantifier followed by a specifier -- or "quantifiers" containing a word of quantity followed by pi (spacing conventions still TBD).

Note: Many pronominal or quantifier phrases may be preceded by specifiers or quantifier, if required by the sense. Thus:

nihalu lúapi vii "I want two mangoes"
nihalu ka lúapi vii "I want the two mangoes"
(Therefore: ka lúapi "both of them")

taaima ka tusi nika "he likes my book" (i.e. not someone else's)

taaima ka nika "he likes mine"

However, when numerals are used as adjectives, i.e. postposed, the NP to which the pertain must take an article like any other NP:

nihalu po vii lua "I want two mangoes"
nihalu ka vii lua "I want the two mangoes"

Again, most of this is old, old news in terms of structures and usages: they just hadn't been identified as different from other NP's before. I don't think there are many implications of this realization other than that our eventual reference grammar will need another separate chapter, but I'm glad to have a more accurate description of these phenomena. I'm curious whether there may be other accidental classes skulking around out there...