[Tlhingan-hol] being capable of language suffix class - property of noun, or referent?

[De'vID jonpIn]

When a noun that is not normally a "being capable of language" is used
to refer to such a being, which set of suffixes does it take?

Artificial example (not the actual idea I'm trying to express but has
a similar form/structure):
{SuvwI'vam vIwIv.  SuvwI'vetlh DawIv.  ghIq...}
- {Suvchuq wIvmeymaj}, or
- {Suvchuq wIvpu'ma'}?

I guess the question is, is it the noun that determines the suffix
class, or the referent of that noun?

-- 
De'vID