the use of {me}

["A.W.T." <Ti@fa-kuan.muc.de>]

I'm not too sure from the Book about the use of lb {me} for creating selbri out of sumti.
1) changing prosumti to selbri: this is clear, e.g. {do na me mi}
2) altering cmene to selbri too: e.g. {ti me la .alis.}
3) but does it work also with descriptive sumti e.g., {ti me le gerku} ??
I think it should, for there's a difference between:
a) {ti gerku} (This is a dog.) and 
b) {ti me le gerku...} (This is the dog...), e.g. {ti me le gerku poi pu batci mi}
otherwise one had to use constructions like {ti poi gerku pu batci mi}.

co'o mi'e la .aulun.