SELECT DISTINCT COUNT(?uri) WHERE {?uri <http://dbpedia.org/ontology/league> <http://dbpedia.org/resource/National_Basketball_Association> . }
Count the participants of the NBA?
SELECT DISTINCT COUNT ( ?n ) WHERE { ?n property:league resource:National_Basketball_Association . }
620
There are [620] people who participate in the National Basketball Association league.
There are [620] people playing in the National Hockey League.
There are [620] basketball players whose league is the organisation.
There are [620] participants of the NBA.