What is the {human} for {student} of {Francis Bacon}
Who is the {human} for {understudy} of {Francis Bacon}
Who is the {human} for {student} of {Francis Bacon}
SELECT DISTINCT ?m WHERE { ?m rdf:type ontology:human . ?m property:student resource:Francis_Bacon }
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/P802> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q37388> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?sbj where { ?sbj wdt:P802 wd:Q37388 . ?sbj wdt:P31 wd:Q5 } 
John Whitgift