Did {Rod_Stewart} {child} {Sean Stewart} and {Ruby Stewart} ?
Are Sean Stewart and Ruby Steward the children of Rod Stewart?
Is Rod Stewart's children Sean Stewart and Ruby Stewart?
ASK WHERE { resource:Rod_Stewart property:child resource:Ruby_Stewart . resource:Rod_Stewart property:child resource:Sean_Stewart }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q182655> . ?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/Q7441455>. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q182655> . ?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/Q7376392>. } 
ASK WHERE { wd:Q182655 wdt:P40 wd:Q7441455 . wd:Q182655 wdt:P40 wd:Q7376392 }