Is there a metallic object that is the same color as the rubber sphere?
return objects ;return #1 that  are metallic ;return the  rubber sphere ;return the  color of #2 ;return the  color of #3 ;return #2 where #4 is  the  same as #5 ;return the  number of  #6 ;return is  #7 more than  zero
['select', 'filter', 'select', 'project', 'project', 'comparative', 'aggregate', 'boolean']