{
  "title": "Vineyard cluster and maturity records for AI evaluation",
  "source_page": "https://fiund.com/industries/vineyard-cluster-sampling-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A row number repeats across blocks and cannot identify a grape sample alone",
    "context": "A fictional table-grape visit log has original image and berry-sample descriptions. It represents no real maturity result, winery target, crop yield or harvest decision.",
    "records": [
      [
        "VC1",
        "Block A visit V1",
        "Day 2, row 3: cluster image I1 and berry sample S1 explicitly linked to V1. Reviewer verifies 4 visible clusters; artificial sample index 16."
      ],
      [
        "VC2",
        "Block B visit V2",
        "Day 2, row 3: sample S2 index 18. Different block and visit; no I1 relationship."
      ],
      [
        "VC3",
        "Later A visit V3",
        "Day 5, row 3 image I3, sample field blank. Summary draft reuses S1's day-2 index as a day-5 result."
      ]
    ],
    "question": "Which image and sample can be paired, and can S2 or the earlier S1 reading fill V3's missing measurement?",
    "answer": "VC1 explicitly pairs I1 with S1 for Block A/V1 on day 2, supporting the stated visible-cluster count and separate sample index. VC2's matching row number belongs to Block B/V2, and S1 belongs to an earlier visit than VC3. Neither supplies a day-5 V3 measurement. Keep visual count and sample result distinct, and request a visit-specific sample rather than carry a prior reading forward as observed maturity.",
    "failureModes": [
      "Joining records by row number without block and visit identity.",
      "Reusing an earlier sample as a new visit's measured value."
    ],
    "fields": [
      [
        "Block, row and visit",
        "Defines the collection event."
      ],
      [
        "Image-to-sample cross-reference",
        "Supports the pairing."
      ],
      [
        "Count versus sample metric and date",
        "Separates different evidence types."
      ]
    ],
    "holdout": "Add V3's image-linked sample with its own method label. Require method comparability review before interpreting the numerical difference as a trend.",
    "boundary": "Use original logs and owned authorized imagery. Exclude coordinates, identities, quality targets and contracted yields; the grower retains harvest decisions."
  }
}