SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/ground> <http://dbpedia.org/resource/Camp_Nou> . ?uri <http://dbpedia.org/property/youthclubs> ?x . }
Name the members of youth clubs which have Camp Nou as their homeground.
SELECT DISTINCT ?v WHERE { ?v property:youthclubs ?r . . ?r property:ground resource:Camp_Nou }
answer
The members whose youth clubs ground is Camp Nou are [answer].
Members of the Camp Nou youth club are [the answer].