If at least one of the animals is standing on a boulder in one of the images.
return animals ;return boulder ;return #1 standing on #2 ;return images of #3 ;return number of  #3 for each  #4 ;return #4 where  #5 is at least one ;return number of  #6 ;return if  #7 is equal to  one
['select', 'select', 'filter', 'project', 'group', 'comparative', 'aggregate', 'boolean']