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Re: Reification as nesting

From: pat hayes <phayes@ai.uwf.edu>
Date: Thu, 7 Jun 2001 13:51:26 -0500
Message-Id: <v04210159b745799a2794@[205.160.76.219]>
To: las@olin.edu
Cc: www-rdf-logic@w3.org
>pat hayes wrote:
>
> > >
> > > > The distinction between
> > > > subject and object provides the distinction between subnesting and
> > > > nesting, much in the way that LISP uses CDRs to indicate list members
> > > > and encodes sublists in the CAR.
> > >
> > >If the verb is used to select the triple, you may find 
>situations in which the
> > >selection is ambiguous.  This is either a bug or a feature, depending (as
> > >always) on your perspective.
> >
> > Can you say a little more on this? You have me worried.
>
>Unless I misunderstood what Pat originally said, which is now lost 
>in the archive
>somewhere....
>
>If a single subject stands in the same predicate relation to multiple objects
>(e.g., I have multiple children), the predicate/verb does not 
>uniquely identify
>the object of the sentence.

Ah, point taken. I guess I was taking the triple itself to be the 
thing analogous to the LISP dotted pair, so that it already 
identifies its subject and object. This assumes that triples inside a 
nest have a unique 'location' (analogous to an address in LISP) so 
that they can be pointed at. Maybe this assumption is RDF-inimical?

Pat

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Received on Thursday, 7 June 2001 14:51:28 GMT

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