{
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  "dek": "联合国粮食及农业组织周五（9月4日）公布的数据显示，干旱、高温和武装冲突冲击全球大宗商品市场，推动2026年8月食品价格进一步上涨，其中食糖价格升至一年多来的最高水平。",
  "desk": "politics",
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      "source_name": "RFI",
      "title": "联合国粮农组织：干旱与战争推升8月食品价格",
      "url": "https://www.rfi.fr/cn/%E4%B8%AD%E5%9B%BD/20260904-%E8%81%94%E5%90%88%E5%9B%BD%E7%B2%AE%E5%86%9C%E7%BB%84%E7%BB%87-%E5%B9%B2%E6%97%B1%E4%B8%8E%E6%88%98%E4%BA%89%E6%8E%A8%E5%8D%878%E6%9C%88%E9%A3%9F%E5%93%81%E4%BB%B7%E6%A0%BC",
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  "headline": "联合国粮农组织：干旱与战争推升8月食品价格",
  "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."
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  "mutation": {
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  "published_at": "2026-09-04T21:48:06Z",
  "reported_facts": [
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      "evidence_item_id": "item-e998e37fb802e36266e393ae",
      "published_at": "2026-09-04T21:48:06Z",
      "statement": "RFI published “联合国粮农组织：干旱与战争推升8月食品价格”."
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  "updated_at": "2026-09-04T21:48:06Z",
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