{
  "updated_at": "2026-05-23",
  "facts": [
    {
      "id": "fact_stb_english_name",
      "claim": "FAO uses Science and Technology Backyard, abbreviated STB, for the English name of 科技小院.",
      "source_id": "src_fao_2022_stb_case",
      "verified_at": "2026-05-23",
      "confidence": "high",
      "page": "/what-is-stb/"
    },
    {
      "id": "fact_stb_origin_2009",
      "claim": "The first STB was created in 2009 in Baizhai Township, Quzhou County, Hebei, by Zhang Fusuo and colleagues from China Agricultural University.",
      "source_id": "src_cau_2022_origin",
      "verified_at": "2026-05-23",
      "confidence": "high",
      "page": "/what-is-stb/"
    },
    {
      "id": "fact_xi_reply_date",
      "claim": "Xi Jinping replied to students of China Agricultural University's STB on May 1, 2023; Xinhua published the related report on May 3, 2023.",
      "source_id": "src_xinhua_2023_reply",
      "verified_at": "2026-05-23",
      "confidence": "high",
      "page": "/what-is-stb/#reply-node"
    },
    {
      "id": "fact_cau_2026_network",
      "claim": "As reported in 2026, China Agricultural University had 233 STBs across 30 provinces and 155 counties/districts, plus 8 overseas STBs in 5 countries.",
      "source_id": "src_cau_2026_4",
      "verified_at": "2026-05-23",
      "confidence": "high",
      "page": "/network/"
    },
    {
      "id": "fact_stb_4_stage",
      "claim": "China Agricultural University reported that STB has entered a 4.0 stage focused on ecological civilization and global green development.",
      "source_id": "src_cau_2026_4",
      "verified_at": "2026-05-23",
      "confidence": "high",
      "page": "/what-is-stb/"
    },
    {
      "id": "fact_fao_typical_case",
      "claim": "FAO presented STB as a case study in agricultural science and technology extension.",
      "source_id": "src_fao_2022_stb_case",
      "verified_at": "2026-05-23",
      "confidence": "high",
      "page": "/what-is-stb/#honors-node"
    }
  ]
}