There is a purple object that is made of the same material as the large gray object; what is its shape?
return the  large gray object  ;return the  material of #1 ;return objects ;return #3 that  are purple ;return materials of #4 ;return #4 where #5 is  the  same as #2 ;return the  shape of #6
['select', 'project', 'select', 'filter', 'project', 'comparative', 'project']