How many other objects are made of the same material as the brown cube?
return cube ;return #1 that is  brown ;return the material of #2 ;return objects besides  #2 ;return the material of #4 ;return #4 where #5 is  the same as #3 ;return there number of  #6
['select', 'filter', 'project', 'discard', 'project', 'comparative', 'aggregate']