{
	"feature": "minecraft:huge_brown_mushroom",
	"placement": [
		{
			"type": "minecraft:rarity_filter",
			"chance": 2
		},
		{
			"type": "minecraft:in_square"
		},
		{
			"type": "heightmap",
			"heightmap": "WORLD_SURFACE"
		},
		{
			"type": "minecraft:block_predicate_filter",
			"predicate": {
				"type": "minecraft:matching_blocks",
				"offset": [
					0,
					-1,
					0
				],
				"blocks": [
					"minecraft:grass_block"
				]
			}
		},
		{
			"type": "minecraft:biome"
		}
	]
}
