{
    "feature": "minecraft:forest_bush_tree",
    "placement": [
        {
            "type": "minecraft:block_predicate_filter",
            "predicate": {
                "type": "minecraft:would_survive",
                "state": {
                    "Name": "minecraft:oak_sapling",
                    "Properties": {
                        "stage": "0"
                    }
                }
            }
        }
    ]
}