Triple
T21951560
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metro-Cammell |
E542081
|
entity |
| Predicate | notableWork |
P4
|
FINISHED |
| Object | London Underground 1938 Stock |
—
|
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: London Underground 1938 Stock | Statement: [Metro-Cammell, notableWork, London Underground 1938 Stock]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: London Underground 1938 Stock Context triple: [Metro-Cammell, notableWork, London Underground 1938 Stock]
-
A.
former London Underground 1938 Stock
chosen
The former London Underground 1938 Stock was a class of electric multiple unit trains that served on deep-level tube lines for decades and later saw extended use on other British railways due to their robust design and longevity.
-
B.
London Underground 1972 Stock
The London Underground 1972 Stock is a long-serving fleet of tube trains primarily used on the Bakerloo line, known for its distinctive older design and continued operation well beyond its originally intended lifespan.
-
C.
London Underground 1992 Stock
The London Underground 1992 Stock is a fleet of electric multiple unit trains primarily used on the Central line, known for introducing modern traction and passenger features to the deep-level Tube network in the early 1990s.
-
D.
London Underground S8 Stock
The London Underground S8 Stock is a modern fleet of air-conditioned, walk-through electric multiple units used on the Metropolitan line, designed to increase capacity and improve passenger comfort and accessibility.
-
E.
British Rail Mark 2 coach
The British Rail Mark 2 coach is a type of steel-bodied passenger railway carriage introduced in the 1960s that significantly improved safety, comfort, and ride quality on Britain’s rail network.
- 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_69e0c47ef0e48190a50e1bcc43f4b3fd |
completed | April 16, 2026, 11:14 a.m. |
| NER | Named-entity recognition | batch_69f1243c84d4819097f5a93b128f024b |
completed | April 28, 2026, 9:18 p.m. |
Created at: April 16, 2026, 7:58 p.m.