Triple
T8910797
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Zone 1 |
E212175
|
entity |
| Predicate | usedBy |
P260
|
FINISHED |
| Object | TfL Rail (historical) |
E293569
|
NE FINISHED |
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: TfL Rail (historical) | Statement: [Zone 1, usedBy, TfL Rail (historical)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: TfL Rail (historical) Context triple: [Zone 1, usedBy, TfL Rail (historical)]
-
A.
TfL Rail services
chosen
TfL Rail services were the interim commuter rail operations in London and the surrounding area that preceded and were later integrated into the full Elizabeth line network.
-
B.
District Railway
The District Railway was a historic London underground railway company that developed much of what is now the District line, helping to form the core of the city's early subterranean transport network.
-
C.
City Thameslink
City Thameslink is a central London railway station on the Thameslink route, serving commuter and regional services through the City of London.
-
D.
TfW Rail
TfW Rail is the train operating company responsible for providing passenger rail services across Wales and the bordering regions of England under the Transport for Wales brand.
-
E.
London Overground
London Overground is a suburban rail network in London that connects outer districts and some central hubs using a mix of newly built and former National Rail lines, integrated into the city’s public transport system.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ca8393b1808190bd4336787ffa2c40 |
completed | March 30, 2026, 2:07 p.m. |
| NER | Named-entity recognition | batch_69cc6523b9348190a7cefac9e73e2004 |
completed | April 1, 2026, 12:21 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cfba36f8cc8190ab57ddc99b7219d1 |
completed | April 3, 2026, 1:01 p.m. |
Created at: March 30, 2026, 6:55 p.m.