Question: How many movies did Joel Schumacher direct?
SPARQL:
SELECT DISTINCT COUNT(?uri) WHERE {?uri <http://dbpedia.org/ontology/director> <http://dbpedia.org/resource/Joel_Schumacher>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Film>}