task/long_term/goodreads/tasks/task_20.json

{
    "type": "recommendation",
    "user_id": "3de78552f1483fb0a1d54d2254133ecd",
    "candidate_category": "book",
    "candidate_list": [
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        "21805954",
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        "3385451",
        "11822887",
        "28241160",
        "6676791",
        "15769311",
        "26570006",
        "28116790",
        "16033223",
        "13096106"
    ],
    "loc": [
        -1,
        -1
    ],
    "data type": "real"
}