What are the products with the maximum page size A4 that also have a pages per minute color smaller than 5?
return products ;return page sizes of #1 ;return maximum of #2 for each #1 ;return #1 where #3 is A4 ;return pages per minute color of #4 ;return #4 where #5 is lower than 5
['select', 'project', 'group', 'comparative', 'project', 'comparative']