Triple
T8981970
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Seaboard System Railroad |
E214552
|
entity |
| Predicate | predecessor |
P97
|
FINISHED |
| Object | Clinchfield Railroad |
E715631
|
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: Clinchfield Railroad | Statement: [Seaboard System Railroad, predecessor, Clinchfield Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Clinchfield Railroad Context triple: [Seaboard System Railroad, predecessor, Clinchfield Railroad]
-
A.
Clinchfield Railroad
chosen
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.
-
B.
Louisville and Nashville Railroad
The Louisville and Nashville Railroad was a major U.S. railroad company that operated across the southeastern United States from the 19th century into the late 20th century, playing a key role in regional freight and passenger transportation.
-
C.
Durbin and Greenbrier Valley Railroad
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.
-
D.
Chesapeake and Ohio Railway
The Chesapeake and Ohio Railway was a major American railroad best known for hauling Appalachian coal and operating key routes through the Mid-Atlantic and Midwest before becoming part of the modern CSX rail system.
-
E.
Atlantic, Tennessee and Ohio Railroad
The Atlantic, Tennessee and Ohio Railroad was a 19th-century regional rail line in the southeastern United States that connected parts of North Carolina and Tennessee, facilitating transportation and commerce in the post–Civil War era.
- 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_69ca839ea8b88190922c6a326ffcc0d3 |
completed | March 30, 2026, 2:07 p.m. |
| NER | Named-entity recognition | batch_69cc67a891e881909e4b84ed82491651 |
completed | April 1, 2026, 12:32 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cfdb8de5e081909cce650a0b299e85 |
completed | April 3, 2026, 3:23 p.m. |
Created at: March 30, 2026, 7:03 p.m.