Question: How many teams have used the stadiums which have been rented by the Canadian Hockey Association?
SPARQL query: SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/tenant> <http://dbpedia.org/resource/Hockey_Canada> . ?x <http://dbpedia.org/property/tenants> ?uri  . }
Answer: There are [11] tenants of the stadiums whose one tenant is Canadian Hockey Association.