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Re: ISSUE-12 On languages and datatypes

From: Antoine Zimmermann <antoine.zimmermann@insa-lyon.fr>
Date: Thu, 09 Jun 2011 10:23:34 +0200
Message-ID: <4DF08306.1070101@insa-lyon.fr>
To: public-rdf-wg@w3.org
Le 09/06/2011 08:03, Sandro Hawke a écrit :
> On Wed, 2011-06-08 at 21:04 -0500, Pat Hayes wrote:
>>
>> It might be worth having a property rdf:langtag which 'extracts' the
>> language tag of a tagged-pair value. Then one could define in OWL
>> useful restriction classes, such as the class of all<string, tag>
>> pairs with the tag en-GB:
>>
>> BritSpeak rdf:type owl:Restriction .
>> BritSpeak owl:onProperty rdf:langtag .
>> BritSpeak owl:hasValue "en-GB" .

This kind of modelling involves the expressiveness of OWL, as your 
example shows. So it needs not be tackled by the RDF working group, in 
my opinion. Anyway, this is already expressible in OWL 2, even in OWL 2 DL.

ex:british owl:equivalentClass [
     rdf:type rdfs:Datatype;
     owl:onDatatype rdf:PlainLiteral;
     owl:withRestrictions( [rdf:langRange "en-GB"] )
].

>
>
> +1
>
> how about the text, too?    :-)
>
>       -- Sandro
>
>


-- 
Antoine Zimmermann
Researcher at:
Laboratoire d'InfoRmatique en Image et Systèmes d'information
Database Group
7 Avenue Jean Capelle
69621 Villeurbanne Cedex
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Tel: +33(0)4 72 43 61 74 - Fax: +33(0)4 72 43 87 13
Lecturer at:
Institut National des Sciences Appliquées de Lyon
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antoine.zimmermann@insa-lyon.fr
http://zimmer.aprilfoolsreview.com/
Received on Thursday, 9 June 2011 08:24:03 GMT

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