What is the {human} for {doctoral student} of {J. Robert Oppenheimer}
Who is thefor J's PhD understudy Oppenheimer Robert?
Who is thefor J's PhD student Oppenheimer Robert?
SELECT DISTINCT ?f WHERE { resource:Robert_Oppenheimer property:doctoral_student ?f . ?f rdf:type ontology:human }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q132537> . ?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> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?obj where { wd:Q132537 wdt:P185 ?obj . ?obj wdt:P31 wd:Q5 } 
Hartland Snyder Willis Lamb David Bohm Arnold Nordsieck Harold Lewis Samuel W. Alderson George Volkoff Robert Serber Philip Morrison Melba Phillips Robert F. Christy Sidney Dancoff Stan Frankel Siegfried Adolf Wouthuysen Bernard Peters Harvey Hall Joseph Weinberg Leslie Lawrance Foldy