Did {Bhumibol_Adulyadej} {child} {Sirikit} and {Chulabhorn Walailak} ?
Are  Sirikit and Chulabhorn Walailak the parents of Bhumibol Adulyadej?
Is Bhumibol Adulyadej the child of Sirikit and Chulabhorn Walailak?
ASK WHERE { resource:Bhumibol_Adulyadej property:child resource:Sirikit . resource:Bhumibol_Adulyadej property:child resource:Chulabhorn_Walailak }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q855252> . ?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/Q164518>. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q855252> . ?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/Q1089410>. } 
ASK WHERE { wd:Q855252 wdt:P40 wd:Q164518 . wd:Q855252 wdt:P40 wd:Q1089410 }