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1: Bird abatement 2: Alaska 3: Soil 4: Maximum mid-expiratory flow rate 5: Community 6: Range 7: Periplaneta americana 8: Weed 9: Human 10: Feeder 11: Environment 12: Function 13: Fishery 14: Contamination 15: Change 16: Japan 17: Process 18: Atmosphere 19: Lead 20: Electricity (As of 00:56)
