Question: When Carl Friedrich Gauss was a student at the University of Helmstedt what was his doctoral thesis and when did he write it?
Paraphrase: When Carl Friedrich Gauss was once a scholar at the University of Helmstedt what was once his doctoral thesis and when did he write it?
SPARQL (Wikidata): SELECT ?value1 ?value2 WHERE { wd:Q6722 p:P69 ?s . ?s ps:P69 wd:Q314466 . ?s pq:P1026 ?value1 . ?s pq:P585 ?value2 }