Question: What is the total number of fictional characters whose created by  Greg Daniels and series is The Office (U.S. TV series)?
SPARQL:
 SELECT DISTINCT COUNT(?uri) WHERE {?uri <http://dbpedia.org/ontology/creator> <http://dbpedia.org/resource/Greg_Daniels> . ?uri <http://dbpedia.org/ontology/series> <http://dbpedia.org/resource/The_Office_(U.S._TV_series)> }