Question: What is the common palce of study for jack McGregor and Philip W. Pillsbury ?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Jack_McGregor> <http://dbpedia.org/ontology/education> ?uri. <http://dbpedia.org/resource/Philip_W._Pillsbury> <http://dbpedia.org/property/education> ?uri}