If one image contains more than four vultures on a tree that is at least mostly bare, and the other contains a single vulture.
return one image ;return vultures in  #1 ;return tree in  #1 ;return #3 that is at least mostly bare ;return #2 on #4 ;return number of  #5 ;return if  #6 is higher than four ;return the  other image ;return vultures in  #8 ;return number of  #9 ;return if  #10 is equal to  one ;return if  both  #7 and #11 are true
['select', 'project', 'project', 'filter', 'filter', 'aggregate', 'boolean', 'select', 'project', 'aggregate', 'boolean', 'boolean']