Triple
T11525334
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Lucas, Iowa, United States |
E273279
|
entity |
| Predicate | coordinateSystem |
P2054
|
FINISHED |
| Object | World Geodetic System 1984 |
E16682
|
NE FINISHED |
How this triple was built (2 steps)
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.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: World Geodetic System 1984 | Statement: [Lucas, Iowa, United States, coordinateSystem, World Geodetic System 1984]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: World Geodetic System 1984 Context triple: [Lucas, Iowa, United States, coordinateSystem, World Geodetic System 1984]
-
A.
WGS84
chosen
WGS84 is the global geodetic reference system and standard coordinate framework used for GPS and most modern mapping applications.
-
B.
GRS80
GRS80 is a geodetic reference ellipsoid defined in 1980 that serves as a standard mathematical model of the Earth's shape for modern mapping and surveying systems.
-
C.
North American Datum of 1983
North American Datum of 1983 is a geodetic reference system used across North America to define precise locations on the Earth's surface for mapping, surveying, and navigation.
-
D.
Global Geodetic Observing System
The Global Geodetic Observing System is an international framework that integrates various space-geodetic and ground-based measurement techniques to monitor and understand changes in the Earth’s shape, rotation, and gravity field.
-
E.
International Terrestrial Reference System
The International Terrestrial Reference System is a globally standardized, Earth-centered coordinate framework used for precise positioning, navigation, and geodetic measurements.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 batches)
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_69d6aae3fbec8190a14632a5df2538b6 |
completed | April 8, 2026, 7:22 p.m. |
| NER | Named-entity recognition | batch_69d87fd379648190b342e0c4b4f685b7 |
completed | April 10, 2026, 4:42 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e62562efb88190bbf3c7bbec8233aa |
completed | April 20, 2026, 1:08 p.m. |
Created at: April 8, 2026, 9:37 p.m.