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Introduction#

Here we show some of the 100 queries of the QALD-2 Challenge.

#1 Which German cities have more than 250000 inhabitants?#

DBpedia SPARQL Query#

PREFIX dbo: <http://dbpedia.org/ontology/> 
PREFIX res: <http://dbpedia.org/resource/> 
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
SELECT DISTINCT ?uri WHERE { 
         { ?uri rdf:type dbo:City . } 
   UNION { ?uri rdf:type dbo:Town . } 
   ?uri dbo:country res:Germany .
   ?uri dbo:populationTotal ?population .
   FILTER ( ?population > 250000 ) 
} 

esDBpedia SPARQL Query#

PREFIX dbo: <http://dbpedia.org/ontology/> 
PREFIX res: <http://es.dbpedia.org/resource/> 
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
SELECT DISTINCT ?uri WHERE { 
         { ?uri rdf:type dbo:City . } 
   UNION { ?uri rdf:type dbo:Town . } 
   ?uri dbo:country res:Germany .
   ?uri dbo:populationTotal ?population .
   FILTER ( ?population > 250000 ) 
} 

#2 Who was the successor of John F. Kennedy?#