Task: Question Generation
Input (English): #1 return Ghana 
#2 return pupils attended school of #1 
#3 return #2 in  1920 
#4 return #2 in  1890 
#5 return number of  #3 
#6 return number of  #4 
#7 return the  difference of #5 and  #6
Output (English): How many more pupils attended school in Ghana in 1920 compared to 1890?