Did {Katy_Perry} {family name} {Hudson}?
is it true that katy perrys family name is hudson?
Is Katy Perry's family name Hudson?
ASK WHERE { resource:Katy_Perry property:family_name resource:Hudson }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q42493> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P734> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q2720681>. } 
ASK WHERE { wd:Q42493 wdt:P734 wd:Q2720681 }