Triple
T17728140
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 444 |
E442518
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | British Rail electric multiple unit |
C8458
|
CONCEPT FINISHED |
How this triple was built (1 step)
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.
CD
Concept disambiguation
gpt-5-mini-2025-08-07
Target class: British Rail electric multiple unit Context triple: [British Rail Class 444, instanceOf, British Rail electric multiple unit]
-
A.
British Rail second-generation DMU
A British Rail second-generation DMU is a diesel multiple unit train introduced from the 1980s onward, featuring improved performance, comfort, and safety over first-generation units and designed for regional and suburban passenger services across the UK rail network.
-
B.
diesel-electric multiple unit family
A diesel-electric multiple unit family is a group of closely related self-propelled rail vehicles that use onboard diesel engines to generate electricity for traction motors, sharing common design, components, and performance characteristics.
-
C.
rail vehicle
chosen
A rail vehicle is a wheeled conveyance designed to operate on railway tracks for transporting passengers, freight, or performing specialized rail-related tasks.
-
D.
electric locomotive class
An electric locomotive class is a category of railway locomotives designed and grouped by shared technical and performance characteristics, all powered by electricity from external sources such as overhead lines or third rails.
-
E.
region of British Railways
A region of British Railways is a large administrative and operational division of the national rail network, responsible for managing railway services, infrastructure, and staff within a defined geographic area of Great Britain.
- F. None of above.
Provenance (1 batch)
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_69d8b9ec79688190b86bdcef85a7b3aa |
completed | April 10, 2026, 8:50 a.m. |
Created at: April 10, 2026, 10:08 a.m.