{
  "title": "Saw blade and handtool data for AI feature indexing",
  "source_page": "https://fiund.com/industries/saw-blade-handtool-feature-index-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "Separate a printed symbol from the edge feature",
    "context": "An inert paper tool silhouette includes a pattern of notches and a deliberately similar graphic.",
    "records": [
      [
        "1",
        "Feature key",
        "F1 is the second edge notch from triangle; decorative chevron D is inside body."
      ],
      [
        "2",
        "Image",
        "Both notch and chevron visible; edge is unobstructed."
      ],
      [
        "3",
        "Draft",
        "Counts D as another edge notch."
      ]
    ],
    "question": "Which features should be counted in the notch sequence?",
    "answer": "Count only features on the edge, using the triangle as the start point in record 1. The interior chevron D in record 2 is decorative, so remove it from the sequence in record 3. Record it separately if graphic annotations are useful.",
    "failureModes": [
      "Counting similar glyphs without location",
      "Losing feature order by starting from the wrong end"
    ],
    "fields": [
      [
        "feature_region",
        "Distinguishes edge and interior"
      ],
      [
        "reference_landmark",
        "Sets sequence origin"
      ],
      [
        "feature_index",
        "Records the count in reference order"
      ]
    ],
    "holdout": "Crop the triangle out of frame but keep the notches visible; permit a count, not a reliable sequence index.",
    "boundary": "Use paper silhouettes only; omit actual tool design, operation advice and performance claims."
  }
}