Task: Question Generation
Input (English): #1 return populations 
#2 return #1 in  1787 
#3 return #1 in  1860 
#4 return difference of #2 and  #3 
#5 return #1 in  1920 
#6 return #1 in  1930 
#7 return difference of #5 and  #6 
#8 return which is lowest of #4 and  #7
Output (English): Which time period saw a smaller increase of population, 1787 to 1860 or 1920 to 1930?