How many years was it between the REd Guards leading a crowd to open stupas containing relics of 5th to 9th Panchen Lamas and the 10th Panchen Lama beginning construction on a new stupa?
return the  REd Guards leading a crowd to open stupas containing relics of 5th to  9th Panchen  Lamas ;return the  10th Panchen  Lama beginning construction on a new stupa ;return year of #1 ;return year of #2 ;return the  difference of #4 and  #3
['select', 'select', 'project', 'project', 'arithmetic']