If both pairs of mittens are different shades of the same colors.
return pair of mittens ;return colors of #1 ;return shades of #2 ;return #1 where  #3 are different ;return #4 where  #2 are the  same ;return number of  #5 ;return if  #6 is equal to  two
['select', 'project', 'project', 'comparative', 'comparative', 'aggregate', 'boolean']