task/user_cold_start/goodreads/tasks/task_12.json

{
  "type": "recommendation",
  "candidate_category": "book",
  "user_id": "2230b21a381b476c51a95bdf270ca7f1",
  "candidate_list": [
    "5805",
    "9498721",
    "657580",
    "2497176",
    "13519263",
    "34353193",
    "15982189",
    "3077977",
    "96648",
    "54286",
    "216322",
    "24456193",
    "1684964",
    "6225279",
    "474794",
    "15800516",
    "18867835",
    "1446207",
    "19499957",
    "2323199"
  ],
  "loc": [
    -1,
    -1
  ]
}