What is the {human} for {spouse} of {Jonas Salk}
What is Jonas Salk's wife's name?
Who is Jonas Salk's wife ?
SELECT DISTINCT ?b WHERE { ?b property:spouse resource:Jonas_Salk . ?b rdf:type ontology:human }
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P26> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q200101> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?sbj where { ?sbj wdt:P26 wd:Q200101 . ?sbj wdt:P31 wd:Q5 } 
Françoise Gilot