Did {Kim_Jong-il} {child} {Kim Jong-nam} and {Kim Yo-jong} ?
Are Kim Jong-Il's children named Kim Jong-nam and Kim Yo-jong?
Were Kim Jong-nam and Kim Yo-jong the children of Kim Jong-il?
ASK WHERE { resource:Kim_Jong-il property:child resource:Kim_Yo-jong . resource:Kim_Jong-il property:child resource:Kim_Jong-nam }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q10665> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P40> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q317824>. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q10665> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P40> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q4330912>. } 
ASK WHERE { wd:Q10665 wdt:P40 wd:Q317824 . wd:Q10665 wdt:P40 wd:Q4330912 }