What is the {human} for {doctoral student} of {Janet Yellen}
Specify the doctoral follower of Janet Yellen
Mention the doctoral disciple of Janet Yellen
SELECT DISTINCT ?s WHERE { ?s rdf:type ontology:human . ?s property:doctoral_student resource:Janet_Yellen }
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/P185> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q263725> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?sbj where { ?sbj wdt:P185 wd:Q263725 . ?sbj wdt:P31 wd:Q5 } 
James Tobin