{
  "example_type": "fictional_quantity_with_authored_benchmark",
  "basis": "Portravo benchmark example, Sacramento",
  "basis_as_of": "2026-09-16",
  "source_description": "Authored reference value in Portravo's material catalog; not a supplier observation or quote",
  "sku": "lumber.stud.2x4x8.kd",
  "quantity": 40,
  "waste_percent": 10,
  "order_quantity": 44,
  "unit": "each",
  "unit_cost_usd": 3.98,
  "material_subtotal_usd": 175.12,
  "excludes": ["Other materials", "Labor", "Equipment", "Delivery", "Tax", "Overhead", "Profit", "Contingency"],
  "review_fields": {"plan_sheet": null, "plan_revision": null, "specification_confirmed": false, "supplier_quote_reference": null, "supplier_quote_date": null, "quote_expiration": null, "reviewer": null},
  "approved_for_bid": false
}