[lojban-beginners] Re: Referring to selma'o in Lojban

[Pierre Abbat <phma@phma.optus.nu>]

On Thursday 20 August 2009 11:56:12 Jorge Llambías wrote:
> BU, ZEI and SI, which act on the "preceding word", will act on a full
> prededing block if another word has already acted, so "zo si" forms
> one block (controlled by "zo" because it comes first) and the next
> "si" will delete the whole block. Another "si" will delete whatever
> word precedes that.

So "zo si bu zei zo si bu" is processed like this:
(zo si) bu zei zo si bu
((zo si) bu) zei zo si bu
(((zo si) bu) zei zo) si bu
bu
error, because there is no preceding word.
Right?

What about "zo y si"? "zo y bu"?

Pierre