What is the {human} for {doctoral advisor} of {Max Planck}
Who was Max Planck's assistant?
Who was Max Planck's assistant?
SELECT DISTINCT ?x WHERE { ?x rdf:type ontology:human . ?x property:doctoral_advisor resource:Max_Planck }
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/P184> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q9021> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?sbj where { ?sbj wdt:P184 wd:Q9021 . ?sbj wdt:P31 wd:Q5 } 
Walter Gordon Walther Bothe Erich Kretschmann Richard Becker Erich Schumann Julius Edgar Lilienfeld Hilde Heinicke Heinrich Karstens Karl Körner Isidor Israel Malkin Wilhelm Wenzel Karl Erich Hupka Max von Laue Gustav Ludwig Hertz Moritz Schlick Walter H. Schottky Walther Meissner Max Abraham