Question: Which university attended by Donn Barber and education institute of Jack McGregor ?
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:Donn_Barber prop:education ?uri. res:Jack_McGregor onto:education ?uri}