Could you please find the products with the max page size as "A4" and with the pages per minute color smaller than 5?
SELECT product FROM product WHERE max_page_size   =   "A4" AND pages_per_minute_color  <  5
products with max page size as 'A4' refers to max_page_size = 'A4'; pages per minute color smaller than 5 refers to pages_per_minute_color < 5;