How many shapes are made of the same material as the purple cylinder in the very front of the image?
return shapes ;return purple cylinder ;return #2 in  the  very front of the   image ;return material of #1 ;return material of #3 ;return #1 where #4 is the  same as #5 ;return number of  #6
['select', 'select', 'filter', 'project', 'project', 'comparative', 'aggregate']