[
  {
    "lootId": 0,
    "default": true,
    "name": "Horse Spawn with Probability",
    "color": "#FFFFFFAA",
    "entry": {
      "lootType": "random",
      "chance": 0.2,
      "entry": {
        "lootType": "entity",
        "entity": "minecraft:horse",
        "count": 1,
        "range": 1,
        "attempts": 4
      }
    }
  },
  {
    "lootId": 1,
    "name": "Zombie Spawn with High Probability",
    "color": "#FFFFFFAA",
    "entry": {
      "lootType": "weight",
      "entries": [
        {
          "weight": 0.8,
          "entry": {
            "lootType": "entity",
            "entity": "minecraft:zombie",
            "count": 5,
            "range": 20,
            "attempts": 4
          }
        },
        {
          "weight": 0.2,
          "entry": {
            "lootType": "none"
          }
        }
      ]
    }
  }
]