Triple
T15063346
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Charlottesville station |
E379690
|
entity |
| Predicate | railwayLineServed |
P848
|
FINISHED |
| Object | Buckingham Branch Railroad |
E1045901
|
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: Buckingham Branch Railroad | Statement: [Charlottesville station, railwayLineServed, Buckingham Branch Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Buckingham Branch Railroad Context triple: [Charlottesville station, railwayLineServed, Buckingham Branch Railroad]
-
A.
Buckingham Branch Railroad
chosen
The Buckingham Branch Railroad is a Virginia-based shortline freight railroad that also hosts passenger service, notably providing trackage for Amtrak’s Cardinal route through the state.
-
B.
Chesterfield Railroad
The Chesterfield Railroad was one of the earliest commercial railroads in the United States, built in the 1830s to transport coal from the mines around present-day Midlothian, Virginia, to the James River.
-
C.
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.
-
D.
Sandersville Railroad
Sandersville Railroad is a shortline freight railroad based in Sandersville, Georgia, primarily serving local kaolin clay and industrial customers and connecting them to larger national rail networks.
-
E.
South Side Railroad
South Side Railroad was a key 19th-century rail line in Virginia that linked the strategic transportation hub of Petersburg with Richmond and other points west, playing an important role in regional commerce and Civil War logistics.
- 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_69d85cd7683881908d405c1b5d7b4f7f |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69dedee803ac81908bb7d66e49c2eb72 |
completed | April 15, 2026, 12:42 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fea5c8b3ac8190b8fc921b6e6eeed5 |
completed | May 9, 2026, 3:11 a.m. |
Created at: April 10, 2026, 3:02 a.m.