SELECT DISTINCT COUNT(?uri) WHERE { <http://dbpedia.org/resource/21Vianet> <http://dbpedia.org/property/services> ?uri . }
How many services does 21Vianet provide?
SELECT DISTINCT COUNT ( ?x ) WHERE { resource:21_Vianet property:services ?x . }
9
There are [9] services provided by 21Vianet.
There are [9] services of 21Vianet.