{
    "display": {
        "icon": {
            "item": "minecraft:wooden_pickaxe"
        },
        "title": "Stone Age",
        "description": "Mine stone with your new pickaxe"
    },
    "parent": "minecraft:story/root",
    "criteria": {
        "get_stone": {
            "trigger": "minecraft:inventory_changed",
            "conditions": {
                "items": [
                    {
                        "item": "minecraft:cobblestone"
                    }
                ]
            }
        }
    }
}