What is the {human} for {field of work} of {leprosy}
People who work in the field of leprosy do what for a living?
What do humans in the field of work leprosy do for a living?
SELECT DISTINCT ?y WHERE { ?y rdf:type ontology:human . ?y property:field_of_work resource:leprosy }
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/P101> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q36956> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?sbj where { ?sbj wdt:P101 wd:Q36956 . ?sbj wdt:P31 wd:Q5 } 
Gerhard Armauer Hansen Anton Rolandsson Martin Nicole Boucart James W McKean