Triple
T12489287
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Charing Cross, Euston and Hampstead Railway |
E298519
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | deep-level tube railway |
C31537
|
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: deep-level tube railway Context triple: [Charing Cross, Euston and Hampstead Railway, instanceOf, deep-level tube railway]
-
A.
deep-level tube stock
Deep-level tube stock is a type of railway rolling stock specifically designed for small-diameter, deep-bored tunnels, typically featuring narrow, cylindrical car bodies and high-performance traction suited to steep gradients and tight curves.
-
B.
elevated railway
An elevated railway is a rail transport system in which tracks and stations are built on raised structures above ground level, typically supported by columns or girders, to avoid interference with street traffic.
-
C.
underground rail corridor
An underground rail corridor is a subsurface passageway engineered to safely guide trains between stations, housing tracks, utilities, and supporting infrastructure while minimizing surface disruption.
-
D.
maglev railway line
A maglev railway line is a transportation route equipped with magnetic levitation and guidance systems that enable high-speed, low-friction train travel along a dedicated track.
-
E.
rail tunnel
A rail tunnel is an underground or enclosed passage constructed to allow trains to travel through obstacles such as mountains, hills, or urban areas while maintaining a continuous railway route.
- F. None of above. chosen
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_69d6ada377208190a36011199a4d8558 |
completed | April 8, 2026, 7:33 p.m. |
Created at: April 8, 2026, 9:56 p.m.