What is the person known for who is the movie director of Sleepy-Time Squirrel?
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Sleepy-Time_Squirrel> <http://dbpedia.org/property/director> ?x . ?x <http://dbpedia.org/ontology/knownFor> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Person>}
Sleepy-Time_Squirrel