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Re: Axiom annotations

From: Matthew Pocock <matthew.pocock@ncl.ac.uk>
Date: Wed, 18 Apr 2007 10:41:22 +0100
To: Jeremy Carroll <jjc@hpl.hp.com>
Cc: Boris Motik <bmotik@cs.man.ac.uk>, "'Alan Ruttenberg'" <alanruttenberg@gmail.com>, public-owl-dev@w3.org, "'chris mungall'" <cjm@fruitfly.org>
Message-Id: <200704181041.22959.matthew.pocock@ncl.ac.uk>

If you represent this in the RDF by reifying it, then presumably we would have 
a URI for the axiom, or at least of the reified version of it?

Matthew

> Boris Motik wrote:
> > Hello,
> >
> > I completely that it isn't pretty; however, the problem is that RDF does
> > not allow you to express ternary relations. In the case of the axiom
> >
> > SubClassOf(Annotation(ap "bla") c1 c2)
> >
> > you actually have a ternary relationship: the participants are the
> > annotation, c1, and c2. Since axioms can have more than one annotation,
> > you actually need a way to represent relationships of arbitrary arity.
> > The only way that I know of for encoding this into RDF is to reify the
> > relationship.
> >
> > Sincerely yours,
> >
> > 	Boris
Received on Wednesday, 18 April 2007 09:41:39 GMT

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