Is there an object the same color as the cube in the back?
return cube ;return #1 that  Is in the back ;return object besides #2 ;return color of #2 ;return color of #3 ;return #3 where #4 Is the same as #5 ;return Is there  any  #6
['select', 'filter', 'discard', 'project', 'project', 'comparative', 'boolean']