请解释一下中国的十二生肖，并以json格式输出。十二生肖应该包含在"zodiac"字段下，每个生肖的信息应包含"animal"（动物名称）和"description"（简短描述）。请保证每个生肖都有简短而准确的描述。
user
{
  "zodiac": [
    {
      "animal": "鼠",
      "description": "活泼、聪明，机警敏捷"
    },
    {
      "animal": "牛",
      "description": "勤奋、稳重，富有耐心"
    },
    {
      "animal": "虎",
      "description": "勇猛、强悍，充满力量"
    },
    {
      "animal": "兔",
      "description": "温柔、敏感，行动敏捷"
    },
    {
      "animal": "龙",
      "description": "传说中的神兽，象征权力与荣耀"
    },
    {
      "animal": "蛇",
      "description": "智慧、灵活，有时神秘莫测"
    },
    {
      "animal": "马",
      "description": "自由、奔放，充满活力"
    },
    {
      "animal": "羊",
      "description": "温和、善良，善于沟通"
    },
    {
      "animal": "猴",
      "description": "机智、聪明，善于变化"
    },
    {
      "animal": "鸡",
      "description": "守信、勤劳，精明能干"
    },
    {
      "animal": "狗",
      "description": "忠诚、勇敢，富有警觉性"
    },
    {
      "animal": "猪",
      "description": "善良、稳重，具有耐性"
    }
  ]
}
assistant