appearance as argument number 2

(instance AcidificationIssue EnvironmentalIssue)	Geography.kif 8486-8486	Acidification issue is an instance of environmental issue
(instance AcidRainIssue EnvironmentalIssue)	Geography.kif 8487-8487	Acid rain issue is an instance of environmental issue
(instance AerosolParticulateIssue EnvironmentalIssue)	Geography.kif 8488-8488	Aerosol particulate issue is an instance of environmental issue
(instance DeforestationIssue EnvironmentalIssue)	Geography.kif 8489-8489	Deforestation issue is an instance of environmental issue
(subclass SoilQualityIssue EnvironmentalIssue)	Geography.kif 8490-8490	Soil quality issue is a subclass of environmental issue
(subclass EnvironmentalWaterIssue EnvironmentalIssue)	Geography.kif 8494-8494	Environmental water issue is a subclass of environmental issue
(instance OvergrazingIssue EnvironmentalIssue)	Geography.kif 8497-8497	Overgrazing issue is an instance of environmental issue
(instance DesertificationIssue EnvironmentalIssue)	Geography.kif 8498-8498	Desertification issue is an instance of environmental issue
(subclass PollutionIssue EnvironmentalIssue)	Geography.kif 8506-8506	Pollution issue is a subclass of environmental issue
(instance WaterInfrastructureIssue EnvironmentalIssue)	Geography.kif 8513-8513	Water infrastructure issue is an instance of environmental issue
(instance OverpopulationIssue EnvironmentalIssue)	Geography.kif 8516-8516	Overpopulation issue is an instance of environmental issue
(subclass BiodiversityIssue EnvironmentalIssue)	Geography.kif 8517-8517	Biodiversity issue is a subclass of environmental issue
(instance SiltationIssue EnvironmentalIssue)	Geography.kif 8518-8518	Siltation issue is an instance of environmental issue
(instance OzoneDepletionIssue EnvironmentalIssue)	Geography.kif 8519-8519	Ozone depletion issue is an instance of environmental issue
(instance UVLevelsIssue EnvironmentalIssue)	Geography.kif 8520-8520	UV levels issue is an instance of environmental issue
(instance ClimateChangeIssue EnvironmentalIssue)	Geography.kif 8521-8521	Climate change issue is an instance of environmental issue
(instance WaterManagementIssue EnvironmentalIssue)	Geography.kif 8523-8523	Water management issue is an instance of environmental issue
(instance FishStockDepletionIssue EnvironmentalIssue)	Geography.kif 8531-8531	Fish stock depletion issue is an instance of environmental issue
(instance UrbanizationIssue EnvironmentalIssue)	Geography.kif 8532-8532	Urbanization issue is an instance of environmental issue
(instance FarmingPracticesIssue EnvironmentalIssue)	Geography.kif 8534-8534	Farming practices issue is an instance of environmental issue
(instance AgriculturalChemicalsIssue EnvironmentalIssue)	Geography.kif 8535-8535	Agricultural chemicals issue is an instance of environmental issue
(instance PesticideIssue EnvironmentalIssue)	Geography.kif 8536-8536	Pesticide issue is an instance of environmental issue
(instance ForestDegradation EnvironmentalIssue)	Geography.kif 8538-8538	Forest degradation is an instance of environmental issue
(instance CoastalDegradation EnvironmentalIssue)	Geography.kif 8540-8540	Coastal degradation is an instance of environmental issue
(instance CoralReefDecayIssue EnvironmentalIssue)	Geography.kif 8541-8541	Coral reef decay issue is an instance of environmental issue
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Sigma version 3.0.0-ac69cf7a (2026-05-13) is open source software produced by Articulate Software and its partners