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RE: What is the rationale for "*:x rdf:type owl:NamedIndividual" ?

From: Boris Motik <boris.motik@comlab.ox.ac.uk>
Date: Tue, 11 Nov 2008 09:37:27 -0000
To: "'Alan Ruttenberg'" <alanruttenberg@gmail.com>, "'W3C OWL Working Group'" <public-owl-wg@w3.org>
Message-ID: <99225F1CAE6244FF9A3CB0E455F84F11@wolf>

Hello,

This declaration has no special meaning: owl:NamedIndividual is not assigned any special meaning in the vocabulary of OWL 2. The
vocabulary element is used only to denote that 8:x is declared.

Note that writing *:x rdf:type olw:Thing would be ambiguous. You get the same triple by serializing this axiom:

ClassAssertion( owl:Thing *:x )

To distinguish the two, we need a new vocabulary element to tag declarations of named individuals.

Regards,

	Boris

> -----Original Message-----
> From: public-owl-wg-request@w3.org [mailto:public-owl-wg-request@w3.org] On Behalf Of Alan Ruttenberg
> Sent: 11 November 2008 08:16
> To: W3C OWL Working Group
> Subject: What is the rationale for "*:x rdf:type owl:NamedIndividual" ?
> 
> 
> Why is this needed?
> 
> BTW, Does this mean that owl:NamedIndividual is a subclass of owl:Thing?
> 
> -Alan
Received on Tuesday, 11 November 2008 09:38:12 GMT

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