Question: For how many movies are there whose musicians home town is in Volos ?
SPARQL:
SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/hometown> <http://dbpedia.org/resource/Volos> . ?uri <http://dbpedia.org/property/music> ?x  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Film>}