{
    "display": {
        "icon": {
            "item": "minecraft:skull",
            "data": 1
        },
        "title": {
            "translate": "advancements.nether.get_wither_skull.title"
        },
        "description": {
            "translate": "advancements.nether.get_wither_skull.description"
        }
    },
    "parent": "minecraft:nether/find_fortress",
    "criteria": {
        "wither_skull": {
            "trigger": "minecraft:inventory_changed",
            "conditions": {
                "items": [
                    {
                        "item": "minecraft:skull",
                        "data": 1
                    }
                ]
            }
        }
    }
}