Question about 2.1 syntax tree

["Steven Churchill" <steven.churchill@xdi.org>]

Drummond,

I think that we discussed on Thursday's call that #19 at
<http://wiki.oasis-open.org/xri/XriCd02/ParseTreeExamples> is not correct
(that it's been shorthanded.)

Below I've shown the current version from the above link as well as two
possible corrections. Can you tell me which correction is correct (or show
me another one if neither are correct)? 


CURRENT VERSION
------------------------------------------------
XRI:            =a*(+b)*c

global-literal          =
typeless-literal        a
local-xref              *(+b)
local-literal           *c


CORRECTION A
------------------------------------------------
XRI:            =a*(+b)*c

global-literal          =
typeless-literal        a
local-xref              *(+b)
global-literal                  +
typeless-literal                b
local-literal           *c


CORRECTION B
------------------------------------------------
XRI:            =a*(+b)*c

global-literal          =
typeless-literal        a
local-xref              *(+b)
global-xref                     +b
global-literal                          +
typeless-literal                        b
local-literal           *c


Thx,

PS: Are we allowed to have =a*+b*c?

~ Steve