Did {Mariah_Carey} {ethnic group} {Cubans}?
Is Mariah Carey Cuban?
did mariah_carey belong to ethnic group of cubans
ASK WHERE { resource:Mariah_Carey property:ethnic_group resource:Cubans }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q41076> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P172> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q1195125>. } 
ASK WHERE { wd:Q41076 wdt:P172 wd:Q1195125 }