CREATE TABLE store_district (store_id DECIMAL, district_id DECIMAL)
CREATE TABLE store (store_id DECIMAL, store_name TEXT, type TEXT, area_size DECIMAL, number_of_product_category DECIMAL, ranking DECIMAL)
CREATE TABLE store_product (store_id DECIMAL, product_id DECIMAL)
CREATE TABLE product (product_id DECIMAL, product TEXT, dimensions TEXT, dpi DECIMAL, pages_per_minute_color DECIMAL, max_page_size TEXT, interface TEXT)
CREATE TABLE district (district_id DECIMAL, district_name TEXT, headquartered_city TEXT, city_population DECIMAL, city_area DECIMAL)

What is the maximum page size for everything that has more than 3 products listed?
SELECT max_page_size FROM product GROUP BY max_page_size HAVING COUNT(*) > 3
SELECT "max_page_size" FROM "product" GROUP BY "max_page_size" HAVING COUNT(*) > 3