Task: Question Generation
Input (English): #1 return the  Battle of Lützen 
#2 return Wallensteins attempt at arbitration 
#3 return when  was  #1 
#4 return when  was  #2 
#5 return which is the  lowest of #3 ,  #4
Output (English): What happened first, the Battle of Lützen or Wallensteins attempt at arbitration?