If some of the balls are in a clear container in one of the images.
return balls ;return container ;return #2 that is clear ;return #1 in  #3 ;return images of #4 ;return number of  #4 for each  #5 ;return #5 where  #6 is at least two ;return number of  #7 ;return if  #8 is equal to  one
['select', 'select', 'filter', 'filter', 'project', 'group', 'comparative', 'aggregate', 'boolean']