[developers] coreference problem fixed

[Emily M. Bender]

Thanks, Bernd and Peter.  I will try it out soon!

On Tue, Aug 12, 2008 at 11:00 AM, Bernd Kiefer <kiefer at dfki.de> wrote:
> Hi Emily,
>
> i think i fixed the problem that leads to different readings for LKB and
> PET with the grammar you gave Peter. He tracked the problem down and i
> could verify with a small example grammar that it now seems to work.
>
> On my way to solution, i unfortunately found another bug concerning
> coreferences in type definitions which obviously nobody found yet.
>
> TDL allows definitions of the following form:
>
> foo := [ f0 #co1 & #co2 & [ a 1 ],
>        f1 #co1,
>        f2 #co2 ].
>
> but this results in the following structure after flop'ing it:
>
> [ f0 #c1 [ a 1 ], f1 #c1, f2 *top* ]
>
> Obviously, the second coref is not treated properly. I think this error is
> hard to track down if used in a grammar, thus i wanted to warn you,
> just in case.
>
> Best,
>        Bernd
>
>