task/classic/goodreads/tasks/task_21.json

{
    "type": "recommendation",
    "user_id": "7dfc7b6dc84c9aca9f10107ef6ce9d31",
    "candidate_category": "book",
    "candidate_list": [
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        "28696068",
        "19103698",
        "28818805",
        "27414448",
        "35007433",
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        "13529682",
        "31931650",
        "1781288",
        "4863699",
        "7615250",
        "15806960",
        "25363511",
        "21856418",
        "7818301",
        "16108407"
    ],
    "loc": [
        -1,
        -1
    ],
    "data type": "real"
}