How many escape games are there in Madison ?
SELECT COUNT ( DISTINCT t1.name ) FROM category AS t2 JOIN business AS t1 ON t2.business_id  =  t1.business_id WHERE t1.city  =  "Madison" AND t2.category_name  =  "escape games";
SELECT COUNT ( DISTINCT t1.name ) FROM category AS t2 JOIN business AS t1 ON t2.business_id  =  t1.business_id WHERE t1.city  =  "Madison" AND t2.category_name  =  "escape games";
[{'COUNT ( DISTINCT t1.name )': 0}]