Triple
T21311632
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Arthur Peppercorn |
E525351
|
entity |
| Predicate | affiliation |
P10
|
FINISHED |
| Object | LNER mechanical engineering department |
—
|
NE NERFINISHED |
How this triple was built (3 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: LNER mechanical engineering department | Statement: [Arthur Peppercorn, affiliation, LNER mechanical engineering department]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: LNER mechanical engineering department Context triple: [Arthur Peppercorn, affiliation, LNER mechanical engineering department]
-
A.
British Rail Engineering Limited
British Rail Engineering Limited was the former engineering subsidiary of British Rail, responsible for designing, building, and maintaining much of the UK’s rolling stock and railway equipment.
-
B.
Railway Technical Centre
The Railway Technical Centre is a major British rail research and development facility in Derby that has historically served as the central hub for engineering, testing, and innovation for the UK railway industry.
-
C.
LNER Group Standard tender
The LNER Group Standard tender was a widely used steam locomotive tender design on the London and North Eastern Railway, built to a common standard so it could be coupled interchangeably to multiple locomotive classes.
-
D.
St Rollox Locomotive Works
St Rollox Locomotive Works is a historic railway engineering and locomotive repair facility in Springburn, Glasgow, that played a major role in Scotland’s railway industry.
-
E.
LNER Class V2
The LNER Class V2 was a class of powerful 2-6-2 steam locomotives designed by Sir Nigel Gresley for mixed-traffic duties on the London and North Eastern Railway in the mid-20th century.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: LNER mechanical engineering department Target entity description: The LNER mechanical engineering department was the division of the London and North Eastern Railway responsible for the design, development, and maintenance of its steam locomotives and rolling stock.
-
A.
British Rail Engineering Limited
British Rail Engineering Limited was the former engineering subsidiary of British Rail, responsible for designing, building, and maintaining much of the UK’s rolling stock and railway equipment.
-
B.
Railway Technical Centre
The Railway Technical Centre is a major British rail research and development facility in Derby that has historically served as the central hub for engineering, testing, and innovation for the UK railway industry.
-
C.
LNER Group Standard tender
The LNER Group Standard tender was a widely used steam locomotive tender design on the London and North Eastern Railway, built to a common standard so it could be coupled interchangeably to multiple locomotive classes.
-
D.
St Rollox Locomotive Works
St Rollox Locomotive Works is a historic railway engineering and locomotive repair facility in Springburn, Glasgow, that played a major role in Scotland’s railway industry.
-
E.
LNER Class V2
The LNER Class V2 was a class of powerful 2-6-2 steam locomotives designed by Sir Nigel Gresley for mixed-traffic duties on the London and North Eastern Railway in the mid-20th century.
- F. None of above. chosen
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_69e0b518b8948190ad69cf9a8784d397 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e75dca66ac8190a5f0a372a9bc25a7 |
completed | April 21, 2026, 11:21 a.m. |
Created at: April 16, 2026, 4:17 p.m.