Find the number of reviews on businesses located in " South Summerlin " neighbourhood
SELECT COUNT ( DISTINCT t3.text ) FROM neighbourhood AS t1 JOIN business AS t2 ON t1.business_id  =  t2.business_id JOIN review AS t3 ON t3.business_id  =  t2.business_id WHERE t1.neighbourhood_name  =  "South Summerlin";
SELECT COUNT ( DISTINCT t3.text ) FROM neighbourhood AS t1 JOIN business AS t2 ON t1.business_id  =  t2.business_id JOIN review AS t3 ON t3.business_id  =  t2.business_id WHERE t1.neighbourhood_name  =  "South Summerlin";
[{'COUNT ( DISTINCT t3.text )': 0}]