[matrix] Parsing prepositional phrases with customization system created grammars

[Emily M. Bender]

Dear Ravi,

Thank you for your question.  You are right that these are intersective
modifiers, and thus should be attached via the isect-mod-phrase.  The
key steps in the analysis are to make sure that an appropriate subty[e
isect-mod-phrase is in fact instantiated in rules.tdl and to define lexical
types and instances for the prepositions themselves.  You probably
want to start with basic-int-mod-adposition-lex as the supertype.

Emily


On Thu, Sep 30, 2010 at 8:13 AM, Coote, Ravi
<ravi.coote at fkie.fraunhofer.de> wrote:
> Dear list,
>
> I am trying to create a minimal grammar for english using the web based
> lingo grammar customization system. The grammar fragment should be able
> to parse prepositional phrases.
>
> Could you please give me some hints, how to start with the lingo grammar
> matrix to create a minimal grammar for English which is able to parse
> prepositional phrases ?
>
> I want to parse sentences like
> "The dog barks near the cat."
> "The dog sleeps under the tree."
>
> Could me please give me some hints, how to start? I tell you what i know
> until now:
>
> -I can load the grammar that's created by the customization system into
> LKB and extend the grammar with new rules -In the matrix there are two
> rules provided for realizing modifications like those which are done by
> prepositional phrases:
>
> -scopal-mod-phrase
> -intersec-mod-phrase
>
> I suppose for prepositional phrases i have to use the rule
> "intersec-mod-phrase", because prepositional phrases do an intersective
> modification of, e.g., a verbal phrases. But, how do I utilize the rule
> "intersec-mod-phrase" in order to let LKB parse also phrases like those
> one above ("The dog barks near the cat").
>
> What do i have to read in order to extend an english minimal grammar
> with prepositional phrases created by the customization system?
>
> Thank you for any help!
>
> Kind Regards,
>
> Ravi Coote
>
>