How many objects are there in total that have the same color and material?
return objects ;return colors of #1 ;return materials of #1 ;return #1 where #2 are the same ;return #1 where #3 are the same ;return #1 in both #4 and  #5 ;return number of #6
['select', 'project', 'project', 'comparative', 'comparative', 'intersection', 'aggregate']