If the bird on the left has a fish, but there are no fish in the right image.
return the  left image ;return bird in  #1 ;return fish  in  #1 ;return if  #2 has #3 ;return the  right image ;return fish  in  #5 ;return number of  #6 ;return if  #7 is equal to  zero ;return if  both  #4 and #8 are true
['select', 'project', 'project', 'boolean', 'select', 'project', 'aggregate', 'boolean', 'boolean']