What is the {ethnic group} and the {sex or gender} of {Alex_Trebek} ?
What gender and ethnic affiliation does Alex Trebek discover with?
What gender and ethnic affiliation does Alex Trebek identify with?
SELECT ?j ?k WHERE { resource:Alex_Trebek property:ethnic_group ?j . resource:Alex_Trebek property:sex_or_gender ?k }
 SELECT ?ans_1 ?ans_2 WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q929985> . ?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> ?ans_1. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q929985> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P21> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?ans_2. } 
SELECT ?ans_1 ?ans_2 WHERE { wd:Q929985 wdt:P172 ?ans_1 . wd:Q929985 wdt:P21 ?ans_2 }
Caucasian male