If there is one lone bird flying in one image and two birds flying together in the second.
return one  image ;return birds in  #1 ;return #2 that are  flying ;return number of #3 ;return If #4 is  equal to one  ;return second image ;return birds in  #6 ;return #7 that are  flying ;return #8 that are  together ;return number of #9 ;return If #10 is  equal to two ;return If both  #5 and #11 are  true
['select', 'project', 'filter', 'aggregate', 'boolean', 'select', 'project', 'filter', 'filter', 'aggregate', 'boolean', 'boolean']