Did {John_McCain} {spouse} {Cindy McCain}?
is John McCain married to Cindy McCain ?
ASK WHERE { wd:Q10390 wdt:P26 wd:Q240628 }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q10390> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P26> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q240628>. } 
Is John McCain's wife named Cindy?