If each image contains exactly one long-haired hound standing outdoors on all fours.
return hounds ;return #1 that are long-haired ;return #2 that are standing outdoors ;return #3 that are standing on all fours ;return images ;return number of  #4 for each  #5 ;return #5 where  #6 is equal to  one ;return number of  #5 ;return number of  #7 ;return if  #8 is equal to  #9
['select', 'filter', 'filter', 'filter', 'select', 'group', 'comparative', 'aggregate', 'aggregate', 'boolean']