Question: List the show related to the which was followed by Doctor Who Extra?
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/Doctor_Who_Extra> . ?uri onto:related ?x  . ?uri rdf:type onto:TelevisionShow}