If in at least one image there is a flute end sitting on a squarded rock.
return flute ;return end of #1 ;return rock ;return #3 that is squarded ;return #2 sitting on #4 ;return images of #5 ;return the  number of  #6 ;return if  #7 is at least one
['select', 'project', 'select', 'filter', 'filter', 'project', 'aggregate', 'boolean']