{
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    "relation": "topic-surface-only",
    "scan_signal_ids": []
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  "dek": "中新网北京9月16日电 (记者 杜燕)秋日的北京园博园，永定河畔碧波荡漾，商务休闲旅居、亲子游乐、美学咖餐等一批新业态悉数亮相。今天，记者从北京市丰台区了解到，作为北京市着眼京西高质量发展作出的重大战略部署，丰台区是“两园一河”协同发展的重要组成部分，区域覆盖面积达35.2平方公里，坐拥永定河岸线7.2公里。自战略实施以来，丰台区紧扣“生态文旅聚核、历史焕新门户”功能定位，实施《丰台区“两园一河”协同联动发展三年行动计划》，系统推进“首都功能跃升、城市更新、产业焕新、科技创新、环境见新、制度革新”六大行动，推动区域发展从“打基础、见雏形”向“出形象、聚功能”加速跃升。",
  "desk": "rights",
  "event_id": "event-2735784d02dd6fbccbff0cc7",
  "evidence_groups": [
    {
      "group_id": "china-news-service-state-media",
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        "media"
      ],
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        "china-news-service-politics"
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      "item_id": "item-a7bbdd671d86c7a69dca9158",
      "published_at": "2026-09-16T08:05:25Z",
      "role": "media",
      "source_id": "china-news-service-politics",
      "source_name": "China News Service",
      "title": "从“公园生态圈”到“国际科创湾区” 京西活力新片区加速走向“实景”",
      "url": "https://www.chinanews.com.cn/gn/2026/09-16/10697568.shtml",
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  "evidence_strength": "single-source",
  "headline": "从“公园生态圈”到“国际科创湾区” 京西活力新片区加速走向“实景”",
  "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-4778d8f5243d44c656379128"
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  "reported_facts": [
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      "statement": "China News Service published “从“公园生态圈”到“国际科创湾区” 京西活力新片区加速走向“实景””."
    }
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