Did {Macbeth} {characters} {Lady Macbeth} and {Siward, Earl of Northumbria} ?
In Macbeth, were Lady Macbeth and Siward, Earl of Northumbria characters?
Were Lady Macbeth and Siward, Earl of Northumbria characters in Macbeth?
ASK WHERE { resource:Macbeth property:characters resource:Siward,_Earl_of_Northumbria . resource:Macbeth property:characters resource:Lady_Macbeth }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q130283> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P674> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q2454065>. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q130283> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P674> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q68366>. } 
ASK WHERE { wd:Q130283 wdt:P674 wd:Q2454065 . wd:Q130283 wdt:P674 wd:Q68366 }