What is the {human} for {educated at} of {Rembrandt}
Who was Rembrandt's instructor ?
Who was Rembrandt's teacher ?
SELECT DISTINCT ?g WHERE { ?g rdf:type ontology:human . ?g property:educated_at resource:Rembrandt }
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/P69> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q5598> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?sbj where { ?sbj wdt:P69 wd:Q5598 . ?sbj wdt:P31 wd:Q5 } 
Carel Fabritius