Task: Question Generation
Input (English): #1 return babies 
#2 return #1 that were low birth weight 
#3 return #2 that were born to smokers 
#4 return #2 that were born to non-smokers 
#5 return percent of #3 
#6 return percent of #4 
#7 return difference of #5 and  #6
Output (English): How many more percent of low birth weight babies were born to smokers than non-smokers?