hi

can anyone explains to me what this terms mean in tree.hed

Stop

Nasal

Fricative

Liquid

C-Front

C-Central

C-Back

V-Front

V-Central

V-Back

Front

Fortis

Lenis

UnFortLenis

Coronal

NonCoronal

Anterior

NonAnterior

Continuent

NonContinuent

Strident

NonStrident

UnStrident

Glide

Syllabic

from where they got this information?

and what i need in order to built tree.hed file in correct way?

and if i have diffrent phonemes such as arabic phonemes ,how i can create some thing like this?