Triple
T20088632
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Shay locomotive |
E496204
|
entity |
| Predicate | isPreservedAt |
P2249
|
FINISHED |
| Object | Durbin and Greenbrier Valley Railroad |
—
|
NE NERFINISHED |
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: Durbin and Greenbrier Valley Railroad | Statement: [Shay locomotive, isPreservedAt, Durbin and Greenbrier Valley Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Durbin and Greenbrier Valley Railroad Context triple: [Shay locomotive, isPreservedAt, Durbin and Greenbrier Valley Railroad]
-
A.
Durbin and Greenbrier Valley Railroad
chosen
The Durbin and Greenbrier Valley Railroad is a heritage railroad in West Virginia that operates scenic tourist excursions through the Allegheny Mountains using historic locomotives and rolling stock.
-
B.
Ligonier Valley Railroad
Ligonier Valley Railroad was a historic short-line railroad in Pennsylvania that primarily served the Ligonier Valley region by transporting passengers and local industrial freight in the late 19th and early 20th centuries.
-
C.
Clinchfield Railroad
Clinchfield Railroad was a U.S. Appalachian-region freight railroad renowned for its heavy coal traffic and engineering feats through the rugged mountains of Kentucky, Virginia, Tennessee, and North Carolina.
-
D.
South Branch Valley Railroad
The South Branch Valley Railroad is a state-owned short-line railroad in West Virginia that operates freight and popular excursion trains through the scenic South Branch Potomac River valley.
-
E.
Cumberland Valley Railroad
The Cumberland Valley Railroad was a historic American railroad that operated primarily in south-central Pennsylvania and northern Maryland, playing a key role in regional transportation during the 19th and early 20th centuries.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69da626eee3881909f3454986d4a6511 |
completed | April 11, 2026, 3:02 p.m. |
| NER | Named-entity recognition | batch_69e6655d65a88190a510132f36341b6c |
completed | April 20, 2026, 5:41 p.m. |
Created at: April 11, 2026, 11:17 p.m.