{
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    "relation": "topic-surface-only",
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  "dek": "中新网昆明9月3日电 (罗婕)9月1日至4日，2026年南亚东南亚陆稻协作网暨南亚东南亚水稻分子设计育种协作网研讨会在云南昆明举行。来自中国、孟加拉国、泰国、伊朗、埃塞俄比亚、尼泊尔、缅甸等多国水稻研究专家学者共聚于此，合力探索培育具备气候弹性的水稻新品种，携手筑牢区域粮食安全屏障。",
  "desk": "politics",
  "event_id": "event-70589129b58d353f189442b4",
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      "role": "media",
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      "source_name": "China News Service",
      "title": "粮食安全问题如何破解？多国水稻专家在滇共探新品种培育之法",
      "url": "https://www.chinanews.com.cn/gn/2026/09-03/10689907.shtml",
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  "headline": "粮食安全问题如何破解？多国水稻专家在滇共探新品种培育之法",
  "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": {
    "kind": "unchanged",
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  "reported_facts": [
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      "evidence_item_id": "item-e1d3ccda53758fc2f6133d30",
      "published_at": "2026-09-03T14:25:27Z",
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}