Question: Which city do both Arthur Ross and Edward Niesen come from?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
 SELECT DISTINCT ?uri WHERE { res:Arthur_A._Ross prop:placeOfBirth ?uri. res:Edward_Niesen onto:birthPlace ?uri}