This is a space of text to remove the old descriptions, new ones will be added later.

Animate and inanimate.

Gevey nouns are divided into two classes: 'causative' nouns, and 'applicative' nouns. The division is lexical, and unmarked. 
» 'causative' nouns can act as the subject of any verb taking the active construction
» an 'applicative' noun cannot act as the subject of a verb taking the active construction - where an applicative verb is the subject of a clause, the verb must take either the incidental or stative construction.

The use of gender is very minimal, mainly limited to one or two suffixes. It's highly likely that those would give way to a single set form in a very short time.