En réponse à John Cowan :

>Randy LaPolla has argued convincingly (at least he convinced me :-) )

Me too! :)) I asked the question only to those who stick to a traditional 
analysis of Mandarin :))) .

>that in Chinese the whole concept of "S, A, and P" makes no sense, that
>Chinese is neither accusative nor ergative nor active, and that case roles
>are assigned on a purely pragmatic basis.

Hehe, I agree :) .

Christophe Grandsire.

You need a straight mind to invent a twisted conlang.