SELECT DISTINCT COUNT(?uri) WHERE {?uri <http://dbpedia.org/ontology/religion> <http://dbpedia.org/resource/Scientology> . }
Count all the scientologists.
SELECT DISTINCT COUNT ( ?e ) WHERE { ?e property:religion resource:Scientology . }
30
There are [30] people whose religion is Scientology.
There are [30] people from Scientology relegion.