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22power resources » power resources, manpower resources, powers resources
power resource » power resources, power source, water resource
2f costs » 2 costs, 23 costs, 22 costs
21 costs » 21 cost, 1 costs, 11 costs
22power resources » power resources, manpower resources, powers resources
power resource » power resources, power source, water resource
2f costs » 2 costs, 23 costs, 22 costs
21 costs » 21 cost, 1 costs, 11 costs