What is the number of objects that are the same color as the object obscured by the metallic sphere?
return the   metallic sphere ;return objects ;return #2 that  are obscured by #1 ;return the   color of #3 ;return colors of #2 ;return #2 where #5 are the   same as #4 ;return number of  #6
['select', 'select', 'filter', 'project', 'project', 'comparative', 'aggregate']