How many years passed between the breaking off of the Crimean Khanate and the end of the Golden Horde?
return the  breaking off of the   Crimean Khanate ;return the  end of the   Golden Horde ;return year of #1 ;return year of #2 ;return difference of #3 and  #4
['select', 'select', 'project', 'project', 'arithmetic']