If each image contains multiple pugs, and one image shows a trio of pugs with a black one in the middle.
return pugs  ;return images ;return number of #1 for each #2 ;return #2 where #3 is  at least two ;return number of #2 ;return number of #4 ;return If #5 is  equal to #6 ;return trio of  #1 ;return #8 that is  with  black one  in  the  middle ;return If #9 is  in  one  image ;return If both  #7 and #10 are  true
['select', 'select', 'group', 'comparative', 'aggregate', 'aggregate', 'boolean', 'project', 'filter', 'boolean', 'boolean']