{
    "display": {
        "title": "ナポアンの挑戦状",
        "description": "スケルトンとゾンビとクリーパーの頭を入手しろ",
        "icon": {
            "item": "minecraft:skull",
            "data": 3
        },
        "background": "minecraft:textures/block/quartz_block_top.png",
        "frame": "challenge"
    },
    "criteria": {
        "getSkeletonSkull": {
            "trigger": "minecraft:inventory_changed",
             "conditions": {
                "items": [
                    {
                        "item": "minecraft:skull",
                        "data": 0
                    }
                ]
            }
        },
        "getZombieSkull": {
            "trigger": "minecraft:inventory_changed",
             "conditions": {
                "items": [
                    {
                        "item": "minecraft:skull",
                        "data": 2
                    }
                ]
            }
        },
        "getCreeperSkull": {
            "trigger": "minecraft:inventory_changed",
             "conditions": {
                "items": [
                    {
                        "item": "minecraft:skull",
                        "data": 4
                    }
                ]
            }
        }
    },
    "rewards": {
        "experience": 500
    }
}