What is the {human} for {professional or sports partner} of {Ernest Hemingway}
With whom did Ernest Hemingway professionally partner playing?
Mention the professional playing partner of Ernest Hemingway
SELECT DISTINCT ?e WHERE { ?e rdf:type ontology:human . ?e property:partner_in_business_or_sport resource:Ernest_Hemingway }
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/P1327> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q23434> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?sbj where { ?sbj wdt:P1327 wd:Q23434 . ?sbj wdt:P31 wd:Q5 } 
Mario Berrino