请列出5个适合夏天的健康冷饮品，并以json格式返回，每个冷饮品都应该包含名称、口味和主要原料三个属性。
user
{
  "cold_drinks": [
    {
      "name": "西瓜汁",
      "taste": "清甜",
      "main_ingredients": "新鲜西瓜"
    },
    {
      "name": "椰子水",
      "taste": "甘甜",
      "main_ingredients": "椰子"
    },
    {
      "name": "自制柠檬冰茶",
      "taste": "酸甜",
      "main_ingredients": "柠檬、红茶"
    },
    {
      "name": "薄荷巧克力冰沙",
      "taste": "清新甜",
      "main_ingredients": "牛奶、巧克力粉、薄荷叶"
    },
    {
      "name": "柚子蜂蜜冷饮",
      "taste": "微苦甜",
      "main_ingredients": "柚子汁、蜂蜜"
    }
  ]
}
assistant