Triple

T33567012
Position Surface form Disambiguated ID Type / Status
Subject National Geodetic Vertical Datum of 1929 E859786 entity
Predicate instanceOf P0 FINISHED
Object United States vertical reference system C27982 CONCEPT FINISHED

How this triple was built (1 step)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

CD Concept disambiguation gpt-5-mini-2025-08-07 
Target class: United States vertical reference system
Context triple: [National Geodetic Vertical Datum of 1929, instanceOf, United States vertical reference system]
  • A. vertical datum chosen
    A vertical datum is a reference surface or level used as a baseline for measuring elevations or depths in geospatial and surveying applications.
  • B. geodetic datum
    A geodetic datum is a reference framework consisting of a defined origin, orientation, and scale used to precisely locate points on the Earth’s surface in terms of latitude, longitude, and elevation.
  • C. geodetic datum component
    A geodetic datum component is an individual element (such as an ellipsoid, reference frame, or coordinate system parameter) that contributes to defining the position, orientation, and scale of a geodetic datum used for spatial referencing on or near the Earth’s surface.
  • D. geodetic reference point
    A geodetic reference point is a precisely surveyed physical location on the Earth's surface used as a fixed coordinate reference for mapping, surveying, and geospatial measurements.
  • E. GNSS reference network
    A GNSS reference network is a coordinated system of continuously operating GNSS stations that provide precise, stable positioning and timing references for surveying, navigation, and geospatial applications.
  • F. None of above.

Provenance (1 batch)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69f3497c1d288190a844ea699914e038 completed April 30, 2026, 12:22 p.m.
Created at: May 1, 2026, 1:40 a.m.