Question: What is the scientist whose PhD students are Erich Bagge and Serban Titeica?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?uri prop:doctoralStudents <http://dbpedia.org/resource/Erich_Bagge> . ?uri prop:doctoralStudents <http://dbpedia.org/resource/È˜erban_ÈšiÈ›eica> . ?uri rdf:type onto:Scientist}