What color has two metallic shapes and two rubber shapes in that color?
return objects ;return #1 that  are metallic ;return number of  #2 for each color  ;return #1 where #3 equal two  ;return #1 that  are rubber ;return number of  #5 for each color  ;return #5 where #6 equal two  ;return color  of both #4 and #7
['select', 'filter', 'group', 'comparative', 'filter', 'group', 'comparative', 'intersection']