Triple
T12479293
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | S8 Stock |
E298260
|
entity |
| Predicate | serviceArea |
P82
|
FINISHED |
| Object | Metropolitan line between Aldgate and Uxbridge |
E61513
|
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: Metropolitan line between Aldgate and Uxbridge | Statement: [S8 Stock, serviceArea, Metropolitan line between Aldgate and Uxbridge]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metropolitan line between Aldgate and Uxbridge Context triple: [S8 Stock, serviceArea, Metropolitan line between Aldgate and Uxbridge]
-
A.
Metropolitan line between Aldgate and Chesham
The Metropolitan line between Aldgate and Chesham is a long-distance London Underground route that runs from the City of London through northwest suburbs into Buckinghamshire, combining urban metro and semi-rural commuter rail characteristics.
-
B.
Metropolitan line
chosen
The Metropolitan line is one of the oldest lines of the London Underground, running from central London into the northwestern suburbs and beyond.
-
C.
Liverpool Street to Enfield Town line
The Liverpool Street to Enfield Town line is a suburban commuter rail route in North and East London that runs from London Liverpool Street to Enfield Town as part of the Lea Valley rail network.
-
D.
London Fenchurch Street–Shoeburyness line
The London Fenchurch Street–Shoeburyness line is a key commuter rail route in Essex and east London, linking central London with coastal towns along the Thames Estuary.
-
E.
Romford–Upminster line
The Romford–Upminster line is a short suburban railway in east London linking Romford and Upminster, operated as part of the London Overground network.
- 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_69d6ada377208190a36011199a4d8558 |
completed | April 8, 2026, 7:33 p.m. |
| NER | Named-entity recognition | batch_69d94dcdcd3c81908ad29145db241408 |
completed | April 10, 2026, 7:21 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f6556c8e4c8190aa7df1defb4cce78 |
completed | May 2, 2026, 7:50 p.m. |
Created at: April 8, 2026, 9:56 p.m.