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1: Active solar heating system 2: Soil 3: Community 4: Feeder 5: Contamination 6: Range 7: Fishery 8: Japan 9: Lead 10: Hazard 11: Change 12: Carbon 13: Electricity 14: Process 15: Water 16: Atmosphere 17: Current 18: Sample 19: Condition 20: Bird abatement (As of 09:19)
