how to zap content between sibling elements?

Hello all,

I have a few siblings that I need to group together like this:

original:
<p> <!-- maybe some other element other than 'k' -->
foo
   <k>A</k> bar <k>B</k> baz <k>C</k>
quux and more stuff
</p>

goal:
<p>
foo
   <grp><k>A</k><k>B</k><k>C</k></grp>
quux and more stuff
</p>

I can do the grouping  but I am having difficulties zapping 'bar'
and 'baz' between <k>'s.  Currently I get:
<p>
foo
   <grp><k>A</k><k>B</k><k>C</k></grp> bar baz
quux and more stuff
</p>
I think I need a condition to my default copying template
to handle the case of "when in-between <k>'s zap the content".
What combination of axes and predicates can I use to express
this condition?  Any hint or suggestion would be appreciated.

thanks,

-jay


=====
jhan@xxxxxxx

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