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INSERT INTO Modifiers
	(
		ModifierId,
		ModifierType
	)
VALUES
	(
		"TUNDRA_FARMS",
		"MODIFIER_PLAYER_CITIES_ADJUST_IMPROVEMENT_VALID_TERRAIN"
	);

INSERT INTO ModifierArguments
	(
		ModifierId,
		Name,
		Value
	)
VALUES
	(
		"TUNDRA_FARMS",
		"ImprovementType",
		"IMPROVEMENT_FARM"
	),
	(
		"TUNDRA_FARMS",
		"TerrainType",
		"TERRAIN_TUNDRA"
	);