How many years after the Qing sent Zhao to stop the rebellions did the Dalai Lama finally return to Tibet?
return Qing send Zhao to stop the  rebellions ;return the  Dalai Lama finally return to Tibet ;return when  was  #1 ;return when  was  #2 ;return difference of #4 and  #3 in  years
['select', 'select', 'project', 'project', 'arithmetic']