What shape is to the right of the metallic blue ball but to the left of the metallic green ball?
return ball ;return #1 that is  metallic ;return #2 that is  blue ;return #2 that is  green ;return objects ;return #5 that are to  the   right of #3 ;return #6 that are to  the   left of #4
['select', 'filter', 'filter', 'filter', 'select', 'filter', 'filter']