What kind of material is the object that has two of the same shapes that are in the same color?
return objects ;return number of  #1 for each shape ;return #1 where #2 is  at least two ;return colors of #3 ;return number of  #4 ;return #3 where #5 equal one ;return material of #6
['select', 'group', 'comparative', 'project', 'aggregate', 'comparative', 'project']