[developers] Transfer rule question

[Emily M. Bender]

Thanks, Berthold.

On Sat, Mar 5, 2016 at 11:21 AM, Berthold Crysmann <
berthold.crysmann at gmail.com> wrote:

> I think you need +copy+ for that.
>
> B
>
>
>
> On 04/03/2016 00:57, Emily M. Bender wrote:
>
>> Dear developers,
>>
>> I'm wrapping up this year's iteration of Ling 567 and have come to a
>> question
>> about transfer rules. One of our sentences is "Cats chase dogs and sleep".
>> One of our languages is a VSO language, which doesn't have VP
>> coordination.
>> It does have subject drop, so the authors of this grammar have translated
>> that
>> sentence as "Tigers (!) chase dogs and [something] sleeps".  We wanted to
>> see if we could write a transfer rule that would take the VP coordination
>> MRS
>> from English and make the corresponding S coordination (with subject
>> drop),
>> worrying only about the case where the second conjunct is an intransitive
>> verb.
>>
>> We got as far as:
>>
>> vp-coord-to-s-coord := monotonic_omtr &
>>  [ CONTEXT [ RELS <! [ PRED "_and_coord_rel",
>>                        L-INDEX #e1,
>>                R-INDEX #arg0 ],
>>                      [ ARG0 #e1,
>>                        ARG1 #arg1 ] !> ],
>>    INPUT [ RELS <! [ PRED #pred,
>>              LBL #lbl,
>>              ARG0 #arg0,
>>                      ARG1 #arg1 ] !> ],
>>    OUTPUT [ RELS <! [ PRED #pred,
>>                       LBL #lbl,
>>                       ARG0 #arg0,
>>                       ARG1 x ] !> ],
>>    FLAGS.SUBSUME < #arg1 > ].
>>
>> ... which does apply and doesn't spin. However, the coref tag #pred
>> between INPUT
>> and OUTPUT don't seem to be doing any work.  That is, the ARG0 is getting
>> copied across (the identity between the _and_coord's R-INDEX and the 'new'
>> EP's ARG0 is there) but the PRED value is getting lost.
>>
>> Does the LOGON transfer formalism allow for preserving PRED values?  If
>> so,
>> what is the syntax I should be using?
>>
>> Many thanks,
>> Emily
>>
>>
>>
>>
>> --
>> Emily M. Bender
>> Professor, Department of Linguistics
>> Check out CLMS on facebook! http://www.facebook.com/uwclma
>>
>
>


-- 
Emily M. Bender
Professor, Department of Linguistics
Check out CLMS on facebook! http://www.facebook.com/uwclma
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