Triple
T25327195
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | B Class steam locomotives |
E635049
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | narrow-gauge tank locomotive |
C3459
|
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: narrow-gauge tank locomotive Context triple: [B Class steam locomotives, instanceOf, narrow-gauge tank locomotive]
-
A.
railway locomotive
chosen
A railway locomotive is a powered rail vehicle that provides the motive force to pull or push trains along railway tracks.
-
B.
narrow-gauge railway line
A narrow-gauge railway line is a railroad whose track gauge is significantly smaller than the standard gauge, typically used in regions with difficult terrain, lower construction costs, or specialized transport needs.
-
C.
locomotive model
A locomotive model is a scaled representation of a railway engine, often detailed and functional, used for display, education, or operation in model railroading layouts.
-
D.
streamlined locomotive
A streamlined locomotive is a high-speed railway engine designed with smooth, aerodynamic contours to reduce air resistance and improve efficiency and performance.
-
E.
narrow-gauge railway terminus
A narrow-gauge railway terminus is the end station or final stopping point on a railway line that uses tracks of narrower width than the standard gauge, where trains begin or conclude their journeys and related operations are managed.
- 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_69e75a9908108190a95427a97020632a |
completed | April 21, 2026, 11:08 a.m. |
Created at: April 21, 2026, 1:30 p.m.