how many objects share the same material as the item farthest back, next to the gray cylinder?
return items ;return #1 that are the  farthest in  the   back ;return #2 that are next to the  gray cylinder ;return material of #3 ;return #1 besides  #3 ;return materials of #5 ;return #5 where #6 is the  same as #4 ;return number of  #7
['select', 'filter', 'filter', 'project', 'discard', 'project', 'comparative', 'aggregate']