Question: Which stockholder of yale Repertory Theatre was training center of William Anthony ?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/William_Anthony_(artist)> <http://dbpedia.org/ontology/training> ?uri. <http://dbpedia.org/resource/Yale_Repertory_Theatre> <http://dbpedia.org/property/owner> ?uri}