What shape is the object that is the same color as the metal ball?
return the   metal ball ;return the   objects besides #1 ;return the   color of #1 ;return the   color of #2 ;return #2 where  #3 is  the   same as #4 ;return the   shape of #5
['select', 'discard', 'project', 'project', 'comparative', 'project']