Which happened last, Mikhail Borisovich was captured at Smolensk, or Bartłomiej Nowodworski inserted a mine into a sewer canal?
return Mikhail Borisovich was  captured at Smolensk ;return Bartłomiej Nowodworski inserted a mine into a  sewer canal ;return when  was  #1 ;return when  was  #2 ;return which is highest of #3 ,  #4
['select', 'select', 'project', 'project', 'comparison']