Task: Question Generation
Input (English): #1 return Rivers 
#2 return touchdown pass of #1 
#3 return yards of #2 
#4 return Tebow 
#5 return touchdown pass of #4 
#6 return yards of #5 
#7 return difference of #3 and  #6
Output (English): How many yards longer was Rivers' touchdown pass over Tebow's one?