What happened second: Cao Qin's failed coup or Gao Dai's Hong you lu?
return Cao Qin 's  failed coups ;return Gao Dai 's  Hong you lu ;return when  was  #1 ;return when  was  #2 ;return which is lowest of #3 ,  #4
['select', 'select', 'project', 'project', 'comparison']