Do you have too many quotes ' ' " " around Louisiana?
(unfortunately can't test now as the endpoit seems to be down)
Best
Pablo
On Oct 23, 2011 6:39 PM, "Lushan Han" <[email protected]> wrote:
> Hi,
>
> I have been trying to run the following sparql query on
> http://dbpedia.org/sparql but failed to get any result. Could someone tell
> me why?
>
> PREFIX dbo: <http://dbpedia.org/ontology/>
>
> SELECT DISTINCT ?x, ?z, ?y WHERE {
> ?z a dbo:Organisation .
> ?y a dbo:RadioStation .
> ?0 rdfs:label ?label0 .
> ?label0 bif:contains '"Louisiana"' .
> ?x dbo:state ?0 .
> ?y dbo:city ?x .
> ?y dbo:owner ?z .
> }
>
> Instead, if I don't use the bif:contains function, the query works, as
> shown below
>
> PREFIX dbo: <http://dbpedia.org/ontology/>
> PREFIX db: <http://dbpedia.org/resource/>
>
> SELECT DISTINCT ?x, ?z, ?y WHERE {
> ?z a dbo:Organisation .
> ?y a dbo:RadioStation .
> ?x dbo:state db:Louisiana .
> ?y dbo:city ?x .
> ?y dbo:owner ?z .
> }
>
> However, it seems the bif:contains works for some other queries.
>
> Many thanks,
> Lushan Han
>
>
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