Task: Question Generation
Input (English): #1 return the  treaty  of Wehlau 
#2 return the  treaty  of Bromberg 
#3 return when  was  #1 
#4 return when  was  #2 
#5 return which is lowest of #3 ,  #4
Output (English): What event happened first, the treaty of Wehlau, or the treaty of Bromberg?