How many objects are small red spheres and small red cubes?
return spheres ;return #1 that  are small  ;return #2 that  are red  ;return cubes ;return #4 that  are small  ;return #5 that  are red  ;return number of #3 ;return number of #6 ;return sum of #7 and #8
['select', 'filter', 'filter', 'select', 'filter', 'filter', 'aggregate', 'aggregate', 'arithmetic']