If in one image, a single blue parrot is sitting on a perch.
return parrots ;return #1 that are  blue ;return perch ;return #2 sitting on #3 ;return images of  #4 ;return number of #4 for each #5 ;return #5 where #6 is  equal to one ;return number of #7 ;return if  #8 is  equal to one
['select', 'filter', 'select', 'filter', 'project', 'group', 'comparative', 'aggregate', 'boolean']