Question: How many bands are signed up with Kobalt Label Services?
SPARQL:
SELECT DISTINCT COUNT(?uri) WHERE {?uri <http://dbpedia.org/ontology/recordLabel> <http://dbpedia.org/resource/Kobalt_Label_Services>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Band>}