If one  dog has an all-white body, excluding its head.
return dogs ;return body of  #1 ;return head of  #1 ;return #1 where #2 is  all-white ;return #1 where #3 is  all-white ;return #1 in  both  #4 and #5 ;return #4 besides  #6 ;return number of #7 ;return if  #8 is  equal to one
['select', 'project', 'project', 'comparative', 'comparative', 'intersection', 'discard', 'aggregate', 'boolean']