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Hi Vasiliy:

You are right, the use of tel as a plain datatype property is in partial 
violation of the latest 2010 vcard ontology spec. However, we currently 
recommend to stick with the Yahoo vcard representation pattern, since 
that is necessary for augmented rendering of phone numbers in Yahoo.

See

http://developer.search.yahoo.com/help/objects/local

I hope this explains our current recommendation.
Best wishes

Martin

PS: IMO, SPARQL queries must tolerate a bit of deviation from standards. 
For example, there are at least three ways of using geo position data in 
Web pages:

http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Geo_/_Location_Data

On 13.06.10 21:42, Vasiliy Faronov wrote:
> Hi,
>
> In the GoodRelations Quickstart Guide, for example in [1], the vcard:tel
> property is used incorrectly, like this:
>
> 	:x vcard:tel "+1 234 56 78 90" .
>
> i. e. it points directly to the telephone number string. Instead, it
> should[2] point to a vcard:Tel instance that has the number as its
> rdf:value:
>
> 	:x vcard:tel [ rdf:value "+1 234 56 78 90" ] .
>
> [1] http://www.ebusiness-unibw.org/wiki/GoodRelationsQuickstart#Company
> [2] http://www.w3.org/Submission/vcard-rdf/#Ex
>
>    

-- 
--------------------------------------------------------------
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  hepp at ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax:     +49-(0)89-6004-4620
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          http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=================================================================

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

This is the archive of the goodrelations dicussion list

[goodrelations] vcard:tel used incorrectly in the Quickstart Guide