By general function, I mean what does each element do? Like...a lot of games and RPs have elements do specific things. Like fire focusing on doing high amounts of straight up damage, light based magic doing buffs and healing, darkness crippling foes, earth being balanced between offense and defense, etc etc. Just as examples...I don't recall the game really doing a lot of this, but some GMs like to add tweaks like that anyway.
Though...those races I am not familiar with (or maybe just don't remember) off the top of my head. I should refresh my memory on the world this will take place in.