Database: yelp
Question: List all the neighbourhoods with Italian restaurant rated less than 2.5 in Madison
SQL:
SELECT t1.neighbourhood_name FROM category AS t3 JOIN business AS t2 ON t3.business_id  =  t2.business_id JOIN category AS t4 ON t4.business_id  =  t2.business_id JOIN neighbourhood AS t1 ON t1.business_id  =  t2.business_id WHERE t2.city  =  "Madison" AND t2.rating  <  2.5 AND t3.category_name  =  "Italian" AND t4.category_name  =  "restaurant";