[
    {
        "source":["https://media.w3.org/2010/05/sintel/trailer.mp4"],
        "video": ["./dataflow/example/video_ocr/trailer_6.mp4"],
        "conversation": [
            {
                "from": "human",
                "value": "<video>\nPlease describe the video in detail."
            }
        ]
    }
]