Question: Who composed the episode after which came Butter's Very own Episode?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x onto:subsequentWork <http://dbpedia.org/resource/Butters'_Very_Own_Episode> . ?x onto:musicComposer ?uri  . ?x rdf:type onto:TelevisionEpisode}