Question: Current players of Colorado Avalanche have previously played for how many different teams?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x onto:team <http://dbpedia.org/resource/Colorado_Avalanche> . ?x onto:formerTeam ?uri . ?uri rdf:type onto:SportsTeam}