If there is one image of a mostly black dog and one of at least one gray dog.
return dogs ;return #1 that is mostly black ;return images ;return number of  #2 for each  #3 ;return #3 where  #4 is at least one   ;return number of  #5 ;return if  #5 is equal to  one   ;return #1 that is gray ;return number of  #8 for each  #3 ;return #3 where  #9 is at least one   ;return number of  #10 ;return if  #11 is equal to  one   ;return if  both  #7 and #12 are true
['select', 'filter', 'select', 'group', 'comparative', 'aggregate', 'boolean', 'filter', 'group', 'comparative', 'aggregate', 'boolean', 'boolean']