{
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    "relation": "topic-surface-only",
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  "dek": "周四，在非洲最大的石油生产国尼日利亚南部，至少37人因吸入有毒石油烟雾而死亡。这些烟雾是在一次试图盗窃输油管道的事件中产生的。管道破坏和石油盗窃在尼日尔三角洲地区十分猖獗，造成了严重的环境污染。该地区事故频发，走私者刺破输油管道，窃取原油，并秘密提炼成燃料出售。",
  "desk": "politics",
  "event_id": "event-dfc3f2b2fbd9874df2875639",
  "evidence_groups": [
    {
      "group_id": "france-medias-monde-rfi-editorial",
      "roles": [
        "media"
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        "rfi-chinese"
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      "independence_group": "france-medias-monde-rfi-editorial",
      "item_id": "item-a5a70cb5a69dad23e3631845",
      "published_at": "2026-09-03T20:20:03Z",
      "role": "media",
      "source_id": "rfi-chinese",
      "source_name": "RFI",
      "title": "尼日利亚非法盗油 毒气体泄漏至少37人遇难",
      "url": "https://www.rfi.fr/cn/%E9%9D%9E%E6%B4%B2/20260903-%E5%B0%BC%E6%97%A5%E5%88%A9%E4%BA%9A%E9%9D%9E%E6%B3%95%E7%9B%97%E6%B2%B9-%E6%AF%92%E6%B0%94%E4%BD%93%E6%B3%84%E6%BC%8F%E8%87%B3%E5%B0%9137%E4%BA%BA%E9%81%87%E9%9A%BE",
      "version_id": "itemv-e5a753d70acd4168751a6f75"
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  "evidence_strength": "single-source",
  "headline": "尼日利亚非法盗油 毒气体泄漏至少37人遇难",
  "lead": false,
  "lead_reason": "Current single-source metadata is retained but not promoted as a lead.",
  "limitations": [
    "Palimpsest retained only feed title, canonical link, time, and a bounded plain-text excerpt; it did not fetch the article body.",
    "The evidence-strength label describes source structure, not truth, intent, impact, or causation.",
    "Declared instrument links are topical pointers until a separate scan or economic observation is joined by time and method.",
    "Title-similarity clustering can miss differently worded or cross-language accounts and can join closely worded updates.",
    "This dossier currently contains one independent evidence group and remains explicitly attributed."
  ],
  "mutation": {
    "kind": "unchanged",
    "previous_version_id": "eventv-4bd9f035e4db2bfb7ae638d5"
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  "published_at": "2026-09-03T20:20:03Z",
  "reported_facts": [
    {
      "attribution": "RFI",
      "evidence_item_id": "item-a5a70cb5a69dad23e3631845",
      "published_at": "2026-09-03T20:20:03Z",
      "statement": "RFI published “尼日利亚非法盗油 毒气体泄漏至少37人遇难”."
    }
  ],
  "topics": [
    "economy",
    "politics",
    "rights"
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  "updated_at": "2026-09-03T20:20:03Z",
  "url": "https://palimpsest.info/news/wire/event-dfc3f2b2fbd9874df2875639/",
  "version_id": "eventv-4bd9f035e4db2bfb7ae638d5"
}