How many things are the same color as the thing that is directly in front of the cylinder?
return things ;return cylinder ;return #1 that is directly in  front of #2 ;return color of #3 ;return color of #1 ;return #1 where #5 is the  same as #4 ;return number of  #6
['select', 'select', 'filter', 'project', 'project', 'comparative', 'aggregate']