{
  "_how_to_use": [
    "Each element in the array is one knowledge entry.",
    "The 'title' field is the label shown under Sources in the chat widget.",
    "The 'content' field is what the bot reads in order to answer.",
    "You may use 'question' and 'answer' instead of 'title' and 'content'.",
    "This _how_to_use key is optional: the importer ignores it."
  ],
  "items": [
  {
    "url": "/dang-ky",
      "title": "iPhone 15 warranty",
      "content": "An iPhone 15 purchased from our store carries a 12 month warranty from the purchase date. The warranty covers manufacturing defects, not accidental or liquid damage."
    },
    {
      "question": "How long does delivery take?",
      "answer": "Orders within the city are delivered within 24 hours. Other regions receive their order in 2 to 5 working days."
    },
    {
      "title": "Return policy",
      "content": "Customers may exchange or return an item within 7 days of receiving it. The product must be in its original box, with all accessories, and unused."
    },
    {
      "title": "Question: How do I track my order?",
      "content": "Answer: Go to the Track order page and enter the order code from your confirmation email. Order codes look like DH- followed by 6 digits."
    }
  ]
}