If an image shows multiple people in front of a hillside building.
return people ;return hillside ;return building ;return #3 on #2 ;return #1 in  front of  #4 ;return images of  #5 ;return number of #5 for each #6 ;return #6 where #7 is  higher than one ;return number of #8 ;return if  #9 is  equal to one
['select', 'select', 'select', 'filter', 'filter', 'project', 'group', 'comparative', 'aggregate', 'boolean']