Question: Which school of jack mcGregor attend which was also the training center of William Anthony ?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Jack_McGregor> <http://dbpedia.org/ontology/education> ?uri. <http://dbpedia.org/resource/William_Anthony_(artist)> <http://dbpedia.org/ontology/training> ?uri}