{
  "title": "Site preparation grade and recheck records for AI",
  "source_page": "https://fiund.com/industries/site-preparation-grade-recheck-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "Comparable readings need a shared reference, not just matching units",
    "context": "An imaginary pad diagram uses arbitrary vertical units and two reference markers. The packet tests evidence reconciliation without coordinates, survey work or machinery.",
    "records": [
      [
        "GR1",
        "Practice map M1 and initial reading",
        "Point A: 12 units relative to benchmark B0."
      ],
      [
        "GR2",
        "Reviewed recheck",
        "Point A: 11 units relative to B0, map M1. Reviewer confirms unchanged reference."
      ],
      [
        "GR3",
        "Map M2 and point B reading",
        "Point B: 9 units relative to B1. B1-to-B0 relationship absent; M2 changes point B's label only."
      ]
    ],
    "question": "Which numerical change is supported under a common reference, and can point B's 9 be compared directly with point A's 11?",
    "answer": "GR1 and GR2 document point A moving from a recorded 12 to 11 under the same B0 reference and map M1, a one-unit difference in the practice values. GR3 uses B1, with no relationship to B0 supplied. Matching units do not resolve the reference gap. Point B's 9 cannot be treated as directly two units below point A's 11 on this evidence.",
    "failureModes": [
      "Subtracting readings across B0 and B1 without a documented reference relationship.",
      "Treating M2's label-only change as a new measurement or a corrected benchmark."
    ],
    "fields": [
      [
        "Point and map revision",
        "Maintains the identity of each observation."
      ],
      [
        "Benchmark reference",
        "Defines the origin used by the numerical reading."
      ],
      [
        "Reference relationship evidence",
        "Shows whether cross-benchmark comparison is supported."
      ],
      [
        "Recheck review",
        "Records the stated continuity of the reference."
      ]
    ],
    "holdout": "Provide an explicit fictional B1-to-B0 offset, then ask for a converted comparison with the transformation cited. Score the converted quantity separately from the original recorded values.",
    "boundary": "Use invented diagrams and units. Exclude real coordinates, surveys, buried utilities, site photographs, equipment and construction instructions."
  }
}