Question: Who were in the youth clubs that were in season of 2015 Argentine Primera Division?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/season> <http://dbpedia.org/resource/2015_Argentine_Primera_DivisiÃ³n> . ?uri <http://dbpedia.org/property/youthclubs> ?x . }