Did {Karen_Carpenter} {occupation} {singer} and {Ringo Starr} ?
Do both Karen Carpenter and Ringo Starr sing?
Are Karen Carpenter and Ringo Starr singers?
ASK WHERE { resource:Karen_Carpenter property:occupation resource:singer . resource:Karen_Carpenter property:occupation resource:Ringo_Starr }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1250861> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P106> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q177220>. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1250861> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P106> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q2632>. } 
ASK WHERE { wd:Q1250861 wdt:P106 wd:Q177220 . wd:Q1250861 wdt:P106 wd:Q2632 }