If in one of the images there is a bookstore without any shoppers.
return bookstore ;return shoppers ;return #2 in  #1 ;return number of  #3 for each  #1 ;return #1 where  #4 is equal to  zero ;return if  #5 is in  one of the  images
['select', 'select', 'filter', 'group', 'comparative', 'boolean']