[developers] STRINGPRED in MRS

[Tuấn Anh Lê]

Hi Mike,

Thanks for answering :D. I think I misunderstood STRINGPRED flag in
pyDelphin. I always think that there are 2 types of predicates, namely
GRAMMARPRED and REALPRED. However I have encountered two different types of
GRAMMARPRED, the one without cargs (such as pronoun_q_rel) and the one with
carg (such as named_rel). I thought STRINGPRED was used to represent the
GRAMMARPRED with CARG.

Right now I'm transforming DMRS using pyDelphin and I'm looking for a way
to find GRAMMARPRED with CARG because after each transformation pyDelphin
take my CARGS out and hide them some where. I need the CARGS for other
mapping though. Is there a way to accomplish this?



On 27 July 2017 at 03:45, Michael Wayne Goodman <goodmami at uw.edu> wrote:

> Hi Tuan Anh,
>
> The thinking of subtypes of predicates has changed over the years, and as
> a result there's numerous overlapping terms for various things. I believe
> that the current consensus (documented on http://moin.delph-in.net/Pr
> edicateRfc) is that there are two main axes of subcategorization for
> predicate symbols: abstract vs surface and string vs type (with "real"
> predicates being a decomposed form of surface preds). But I suspect what
> you mean by STRINGPRED is not the same thing as described on the wiki?
>
> I'm afraid PyDelphin is a bit behind the times WRT these definitions of
> predicates, and instead follows mostly what was described in the MRS DTD
> (as I understood it at the time). Therefore currently PyDelphin calls
> predicates beginning with an underscore a "stringpred", regardless of
> whether the symbol was quoted or not. I.e., it should be called
> "surfacepred" or something. Abstract predicates are called "grammarpred" in
> PyDelphin. I have created a ticket for this bug: https://github.com/delph-
> in/pydelphin/issues/117.
>
> Now back to your question, "named_rel" is called a GRAMMARPRED in
> PyDelphin because the predicate does not start with an underscore.
>
> On Wed, Jul 26, 2017 at 8:25 AM, Tuấn Anh Lê <tuananh.ke at gmail.com> wrote:
>
>> Hi delphinians,
>>
>> I'm working on predicate mapping and found that named_rel are not
>> STRINGPRED when processed by pyDelphin.Are these expected behaviours? Can
>> someone please shed some light for me on this matter :D Thank you.
>>
>> REALPRED 1
>> STRINGPRED 2
>> <ElementaryPredication object (pron_rel (x24)) at 140241381023560> 0
>> <ElementaryPredication object (pronoun_q_rel (x24)) at 140241380610120> 0
>> <ElementaryPredication object (_have_v_1_rel (e25)) at 140241380610240> 1
>> <ElementaryPredication object (_the_q_rel (x26)) at 140241380610360> 1
>> <ElementaryPredication object (_pleasure_n_of_rel (x26)) at
>> 140241380610480> 1
>> <ElementaryPredication object (udef_q_rel (x27)) at 140241380610600> 0
>> <ElementaryPredication object (nominalization_rel (x27)) at
>> 140241380610720> 0
>> <ElementaryPredication object (_make_v_1_rel (e28)) at 140241380610840> 1
>> <ElementaryPredication object (_the_q_rel (x29)) at 140241380610960> 1
>> <ElementaryPredication object (_doctor_n_1_rel (x29)) at 140241380611080>
>> 1
>> <ElementaryPredication object (def_explicit_q_rel (x31)) at
>> 140241380611200> 0
>> <ElementaryPredication object (poss_rel (e30)) at 140241380611320> 0
>> <ElementaryPredication object (_acquaintance_n_1_rel (x31)) at
>> 140241380611440> 1
>> <ElementaryPredication object (_say_v_to_rel (e32)) at 140241380611560> 1
>> <ElementaryPredication object (proper_q_rel (x33)) at 140241380611680> 0
>> *<ElementaryPredication object (named_rel (x33)) at 140241380611800> 0*
>> <ElementaryPredication object (_and_c_rel (e34)) at 140241380611920> 1
>> <ElementaryPredication object (_in_p_rel (e35)) at 140241380612040> 1
>> <ElementaryPredication object (udef_q_rel (x37)) at 140241380612160> 0
>> <ElementaryPredication object (_a+few_a_1_rel (e36)) at 140241380612280> 1
>> <ElementaryPredication object (_word_n_of_rel (x37)) at 140241380612400> 1
>> <ElementaryPredication object (pron_rel (x38)) at 140241380612520> 0
>> <ElementaryPredication object (pronoun_q_rel (x38)) at 140241380612640> 0
>> <ElementaryPredication object (_sketch_v_1_rel (e39)) at 140241380612760>
>> 1
>> <ElementaryPredication object (_out_p_rel (e40)) at 140241380612880> 1
>> <ElementaryPredication object (free_relative_q_rel (x41)) at
>> 140241380613000> 0
>> <ElementaryPredication object (thing_rel (x41)) at 140241380613120> 0
>> <ElementaryPredication object (_occur_v_to_rel (e42)) at 140241380613240>
>> 1
>>
>>
>> Yours,
>> --
>> Tuan Anh Le
>>
>
>
>
> --
> Michael Wayne Goodman
> Ph.D. Candidate, UW Linguistics
>



-- 
Yours,
-- 
Tuan Anh Le
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