手册:Minecraft:permute type

应填在"conditions"下方

{
    "conditions": [
        {
            "minecraft:permute_type": [
                {
                    "weight": 25
                },
                {
                    "weight": 25,
                    "entity_type": "minecraft:sheep"
                },
                {
                    "weight": 25,
                    "entity_type": "minecraft:zombie"
                },
                {
                    "weight": 25,
                    "entity_type": "minecraft:iron_golem"
                }
            ]
        } 
    ]
}