What is the {father} and the {sibling} of {Krishna} ?
What are the names of Krishna's father and siblings?
Who are Krishna's father and sibling?
SELECT ?k ?a WHERE { resource:Krishna property:father ?k . resource:Krishna property:sibling ?a }
 SELECT ?ans_1 ?ans_2 WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q42891> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P22> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?ans_1. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q42891> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P3373> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?ans_2. } 
SELECT ?ans_1 ?ans_2 WHERE { wd:Q42891 wdt:P22 ?ans_1 . wd:Q42891 wdt:P3373 ?ans_2 }
Vasudeva Balarama Vasudeva Subhadra