Is there a metallic and a non metallic object that are the same shape?
return objects ;return #1 that  are metallic  ;return #1 that  are non metallic  ;return shapes of #2 ;return shapes of #3 ;return #1 where #4 Is the same as #5 ;return Is there  any  #6
['select', 'filter', 'filter', 'project', 'project', 'comparative', 'boolean']