- From: Stasinos Konstantopoulos <konstant@iit.demokritos.gr>
- Date: Thu, 3 Jul 2008 18:15:51 +0300
- To: Ivan Herman <ivan@w3.org>
- Cc: public-powderwg@w3.org
Received on Thursday, 3 July 2008 15:16:34 UTC
On Thu Jul 3 13:50:36 2008 Ivan Herman said: > Comment on http://www.w3.org/TR/2008/WD-powder-dr-20080630/ > > Example 2-13. > > I am not sure that the translation of the tagset leads to a meaningful > Class. In the class definition of tagset_1 we have an intersection of > thee restrictions; all three refers to the _same_ property but with > different values. Isn't the intersection then empty? Not at all, the intersection has all three values for the same property as wdr:tag is not a functional property. To make this more concrete, in the attached exIvan.owl try running this query: SELECT ?x ?y WHERE { ?x <http://www.test.org/ontology.owl#tag> ?y } Pellet happily answers: Query Results (4 answers): x | y ========================================= ontology:website1 | "tag1"^^xsd:string ontology:website2 | "tag2"^^xsd:string ontology:website2 | "my tag3"^^xsd:string ontology:website2 | "tag1"^^xsd:string
Received on Thursday, 3 July 2008 15:16:34 UTC