Sure! Here is how each phrase matches up with the corresponding region of the United States in the years immediately preceding the Civil War:
- North - contained the majority of the railroad network
- South - economy based primarily on agriculture
- South - accounted for the majority of food production
- North - produced almost all manufactured goods
- South - contained less than a third of the population
So the matches are:
- North: contained the majority of the railroad network, produced almost all manufactured goods
- South: economy based primarily on agriculture, accounted for the majority of food production, contained less than a third of the population