[protege-discussion] SPARQL and Object Property

[Brice Sommacal]

Hello,

owl:onProperty is used to make restriction.
If you want to retrieve all people and food which are "connected" with the
predicat :hasDailyMenu, you should request like the following:

SELECT ?People ?Food
        WHERE { ?People :hasdailymenu ?Food.
                                 }

Regards ,


Brice

2012/6/1 jayadianti herlina <herlinajayadianti at gmail.com>

> Hi expert
>
> I need your help.
> I have a problem in connection between classes and object properties.
> I create 2 classes "People" and "Food"
> and an object property "hasdailymenu".
> its work perfectly in DL but I still have a difficulties in SPARQL.
>
> PREFIX rdf: <http://www.semanticweb.org/CO.owl#>
> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
> PREFIX owl: <http://www.w3.org/2002/07/owl#>
> PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
> SELECT ?People ?Food
>         WHERE { ?People owl:onProperty :hasdailymenu.
>                                  ....}
>
> help me.
>
> Sincerely
> Lina
>
>
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