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1: Active solar heating system 2: Community 3: Soil 4: Bird abatement 5: Weed 6: Range 7: Lead 8: Feeder 9: Electricity 10: Change 11: Hazard 12: Japan 13: Periplaneta americana 14: Contamination 15: Process 16: Atmosphere 17: Action 18: Function 19: Fishery 20: Animal (As of 00:19)