Question: Name the scientist whose supervisor was Ernest Rutherford and had a doctoral students named Charles Drummond Ellis?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE {?uri onto:doctoralAdvisor <http://dbpedia.org/resource/Ernest_Rutherford> . ?uri prop:doctoralStudents <http://dbpedia.org/resource/Charles_Drummond_Ellis>  . ?uri rdf:type onto:Scientist}