Task: Question Generation
Input (English): #1 return Italy  's delcaration of war on France 
#2 return the  end of fighting in  Italy  
#3 return year of #1 
#4 return year of #2 
#5 return the  difference of #4 and  #3
Output (English): How many years passed between Italy's delcaration of war on France and the end of fighting in Italy?