Question: Give me a count of everything owned by the network whose sister name is The CW?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x prop:sisterNames <http://dbpedia.org/resource/The_CW> . ?uri prop:network ?x . }