Triple
T4561641
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | USRA Light Mikado 2-8-2 locomotive design |
E121803
|
entity |
| Predicate | usedBy |
P260
|
FINISHED |
| Object | Atlantic Coast Line Railroad |
E64932
|
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: Atlantic Coast Line Railroad | Statement: [USRA Light Mikado 2-8-2 locomotive design, usedBy, Atlantic Coast Line Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Atlantic Coast Line Railroad Context triple: [USRA Light Mikado 2-8-2 locomotive design, usedBy, Atlantic Coast Line Railroad]
-
A.
Atlantic Coast Line Railroad
chosen
The Atlantic Coast Line Railroad was a major U.S. railroad that operated primarily in the southeastern United States, known for its passenger and freight services along the Atlantic seaboard before its mid-20th-century mergers.
-
B.
Seaboard Coast Line Railroad
Seaboard Coast Line Railroad was a major Class I railroad in the southeastern United States, formed in 1967 and known for both freight operations and prominent passenger services before becoming part of CSX Transportation.
-
C.
Seaboard Air Line Railroad
Seaboard Air Line Railroad was a major American railroad that operated in the southeastern United States, known for its prominent passenger services and streamlined trains.
-
D.
Seaboard System Railroad
Seaboard System Railroad was a major U.S. freight railroad of the 1980s that consolidated several southeastern carriers and later became part of CSX Transportation.
-
E.
Southern Railway (U.S.)
Southern Railway (U.S.) was a major American Class I railroad that operated primarily in the southeastern United States before becoming a key predecessor of Norfolk Southern Railway.
- 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_69bd463f156881908a99aca69c5721ac |
completed | March 20, 2026, 1:06 p.m. |
| NER | Named-entity recognition | batch_69bd582f21648190b49284eb61b618c9 |
completed | March 20, 2026, 2:22 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69be03391b3481909fd41ac03abe5d1b |
completed | March 21, 2026, 2:32 a.m. |
Created at: March 20, 2026, 1:09 p.m.