Question: What is the nationality of the chancellor who was served by Michael Mayr?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Michael_Mayr> onto:deputy ?x . ?x onto:nationality ?uri . ?x rdf:type onto:Chancellor}