Task: Question Generation
Input (English): #1 return Roskilde 
#2 return inhabitants of #1 
#3 return #2 in  1753 
#4 return #2 in  1536 
#5 return number of  #3 
#6 return number of  #4 
#7 return difference of #6 and  #5
Output (English): How many less inhabitants by 1753 in Roskilde than in 1536?