Triple
T1429424
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Atchison, Topeka and Santa Fe 4-8-4 locomotive |
E30409
|
entity |
| Predicate | category |
P87
|
FINISHED |
| Object | Atchison, Topeka and Santa Fe Railway locomotives |
E30409
|
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: Atchison, Topeka and Santa Fe Railway locomotives | Statement: [Atchison, Topeka and Santa Fe 4-8-4 locomotive, category, Atchison, Topeka and Santa Fe Railway locomotives]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Atchison, Topeka and Santa Fe Railway locomotives Context triple: [Atchison, Topeka and Santa Fe 4-8-4 locomotive, category, Atchison, Topeka and Santa Fe Railway locomotives]
-
A.
Atchison Topeka and Santa Fe 4-8-4 locomotive
chosen
The Atchison, Topeka and Santa Fe 4-8-4 locomotive is a powerful steam engine from the famed Santa Fe Railway, known for hauling high-speed passenger and heavy freight trains across the American West in the mid-20th century.
-
B.
Atchison, Topeka and Santa Fe Railway
The Atchison, Topeka and Santa Fe Railway was a major American railroad that became one of the largest and most influential rail systems in the United States, central to the development of the Southwest.
-
C.
Southern Pacific Cab Forward locomotive
The Southern Pacific Cab Forward locomotive is a distinctive class of steam engines with the cab placed at the front for crew safety, famously used by the Southern Pacific Railroad to haul trains through long, smoky mountain tunnels and snow sheds in the American West.
-
D.
Union Pacific inspection cars
Union Pacific inspection cars are specially outfitted railroad cars used by the Union Pacific Railroad to carry officials and inspectors for track, infrastructure, and operational evaluations along the rail network.
-
E.
Denver and Rio Grande Western Railroad
The Denver and Rio Grande Western Railroad was a historic U.S. railroad known for its scenic mountain routes through Colorado and Utah and its role in transcontinental passenger and freight service.
- 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_69a498fc69ec8190b61722bd4b67c4d2 |
completed | March 1, 2026, 7:52 p.m. |
| NER | Named-entity recognition | batch_69a4c4db2d7481908d241593d0e17d83 |
completed | March 1, 2026, 10:59 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad016930ec8190ab3900d6f40c4aa0 |
completed | March 8, 2026, 4:56 a.m. |
Created at: March 1, 2026, 8 p.m.