{
	"feature": "nullscape:rift/rift_gateway",
	"placement": [
		{
			"type": "carving_mask",
			"step": "air"
		},
		{
			"type": "minecraft:block_predicate_filter",
			"predicate": {
				"type": "minecraft:all_of",
				"predicates": [
					{
						"type": "minecraft:matching_blocks",
						"offset": [
							0,
							-1,
							0
						],
						"blocks": [
							"minecraft:air",
							"minecraft:blackstone",
							"minecraft:obsidian",
							"minecraft:crying_obsidian",
							"minecraft:end_stone"
						]
					},
					{
						"type": "minecraft:matching_blocks",
						"blocks": [
							"minecraft:blackstone",
							"minecraft:obsidian",
							"minecraft:crying_obsidian",
							"minecraft:end_stone"
						]
					},
					{
						"type": "minecraft:matching_blocks",
						"offset": [
							0,
							1,
							0
						],
						"blocks": [
							"minecraft:air"
						]
					}
				]
			}
		}
	]
}
