Task: Question Generation
Input (English): #1 return Neville and  Percy occupied Durham 
#2 return Sussex marched out from  York against rebels 
#3 return when  was  #1 
#4 return when  was  #2 
#5 return which is highest of #3 ,  #4
Output (English): What event happened later, Neville and Percy occupied Durham or Sussex marched out from York against rebels?