Which collective group of items is of the greatest volume, the cubical ones or the non cubical ones?
return items ;return #1 that  are cubical ;return #1 that  are non cubical ;return volume of #2 ;return volume of #3 ;return sum of #4 ;return sum of #5 ;return Which is  highest of #6 ,  #7
['select', 'filter', 'filter', 'project', 'project', 'aggregate', 'aggregate', 'comparison']