If there are three men with black hair and brown skin inside a bookstore.
return men ;return hair of  #1 ;return skins of  #1 ;return #1 where #2 is  black ;return #4 where #3 is  brown ;return bookstore ;return #5 that are  in  #6 ;return number of #7 ;return If #8 is  equal to three
['select', 'project', 'project', 'comparative', 'comparative', 'select', 'filter', 'aggregate', 'boolean']