I am trying to transform my SPARQL query from Wikidata to DBpedia (just for educational purpose), but it doesn't work. Could someone please help me and tell me what I'm doing wrong? Thank you!
SELECT ?musician ?musicianLabel WHERE {
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
?musician wdt:P31 wd:Q5 .
?musician wdt:P136 ?genre .
FILTER(?genre IN (wd:Q383982, wd:Q206159))
}
GROUP BY ?musician ?musicianLabel
ORDER BY ASC(?musicianLabel)
working
... and in http://lod.openlinksw.com/sparql
SELECT ?musician WHERE {
?musician a <http://dbpedia.org/resource/Person> .
?musician <http://dbpedia.org/resource/Genre> <http://dbpedia.org/resource/Genre> .
FILTER(<http://dbpedia.org/resource/Genre> IN (<http://dbpedia.org/resource/Psychedelic_Pop>, <http://dbpedia.org/resource/Psychedelic_Rock>))
}
GROUP BY ?musician
ORDER BY ASC(?musician)
not working
I'm not sure why you dropped the label from your adapted query... Try this (results)
SELECT DISTINCT ?musician ?musicianlabel
WHERE
{ ?musician a <http://dbpedia.org/ontology/Person> .
?musician <http://dbpedia.org/ontology/genre> ?genre .
OPTIONAL { ?musician <http://www.w3.org/2000/01/rdf-schema#label> ?musicianlabel .
FILTER ( LANGMATCHES ( LANG ( ?musicianlabel ), 'en' ) )
}
FILTER (?genre IN ( <http://dbpedia.org/resource/Psychedelic_pop> ,
<http://dbpedia.org/resource/Psychedelic_rock>
)
)
}
ORDER BY ASC ( ?musician )