Question: Give me the characters who last appeared in Star Wars Episode 3.
SPARQL query: SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/property/last> <http://dbpedia.org/resource/Star_Wars:_Episode_III_–_Revenge_of_the_Sith> }
Answer: [Palpatine] is the character who last appeared in Star Wars: Episode III Revenge of the Sith.