{
  "id": "unknown_abstention",
  "description": "只写入一条无关事实，然后询问从未提及的属性。模型必须明确表示不知道，而不是编造或把相似记忆硬当答案。",
  "sessions": [
    {
      "id": "s1",
      "turns": [
        "记一下：我的工位在 3 楼东侧。"
      ]
    },
    {
      "id": "s2",
      "turns": [
        "我的血型是什么？如果不知道就直说不知道，不要猜。"
      ]
    },
    {
      "id": "s3",
      "turns": [
        "我上个月去哪出差了？没有记录的话请直接说没有记录。"
      ]
    }
  ],
  "assertions": [
    { "type": "answer_contains", "session": "s2", "turn": 0, "any": ["不知道", "没有记录", "无法确认", "未找到", "不清楚"] },
    { "type": "answer_not_contains", "session": "s2", "turn": 0, "any": ["A 型", "B 型", "O 型", "AB 型"] },
    { "type": "answer_contains", "session": "s3", "turn": 0, "any": ["没有记录", "不知道", "无法确认", "未找到", "不清楚"] }
  ]
}