Task: Question Generation
Input (English): #1 return the  1998 flood 
#2 return the  2004 floods 
#3 return lost lives of #1 
#4 return lost lives of #2 
#5 return number of  #3 
#6 return number of  #4 
#7 return the  difference of #5 and  #6
Output (English): How many more lives were lost in the 1998 flood than in the 2004 floods?