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1-A Stone Quarry

1-B Clay Pit

1-C Forest

1-X Building Material Factory

2-A Animal Farm

2-B Grain Farm

2-C Fruit Orchard

2-X Food Processing Plant

3-A Iron Ore Mine

3-B Oil Wells

3-C Uranium Mine

3-AA Death Steel Mill

3-BB Oil Refinery

3-CC Power Plant

3-X Machinery Factory

4-X Worker Yard

5-X Exchange Merchant