Triple
T22924973
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Thomas Viaduct |
E569276
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | B&O Railroad Washington Branch |
—
|
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: B&O Railroad Washington Branch | Statement: [Thomas Viaduct, partOf, B&O Railroad Washington Branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: B&O Railroad Washington Branch Context triple: [Thomas Viaduct, partOf, B&O Railroad Washington Branch]
-
A.
Buckingham Branch Railroad
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.
B&O Railroad line
chosen
The B&O Railroad line is one of the earliest and most historically significant railroads in the United States, central to 19th-century transportation and industrial expansion.
-
C.
Baltimore Industrial Railroad
The Baltimore Industrial Railroad is a shortline freight railroad that serves industrial customers within the Baltimore, Maryland area.
-
D.
Baltimore and Susquehanna Railroad
The Baltimore and Susquehanna Railroad was an early 19th-century American railroad that helped pioneer rail transportation in Maryland and Pennsylvania, eventually becoming part of the Northern Central Railway system.
-
E.
Chesapeake Beach Railway
The Chesapeake Beach Railway was a historic early 20th-century rail line that carried passengers from Washington, D.C., to the resort town of Chesapeake Beach, Maryland, promoting seaside tourism along the Western Shore of the Chesapeake Bay.
- 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_69e2458f7d008190901dccbaebeaba24 |
completed | April 17, 2026, 2:37 p.m. |
| NER | Named-entity recognition | batch_69f180d84fc08190b747c3f9052c657a |
completed | April 29, 2026, 3:54 a.m. |
Created at: April 17, 2026, 3:43 p.m.