Triple
T13075498
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Croydon town centre |
E329561
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object | Southern railway services |
E493611
|
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: Southern railway services | Statement: [Croydon town centre, servedBy, Southern railway services]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southern railway services Context triple: [Croydon town centre, servedBy, Southern railway services]
-
A.
Main Southern railway line
The Main Southern railway line is a major rail corridor in New South Wales, Australia, linking Sydney with the state’s southern regions and forming part of the key interstate route between Sydney and Melbourne.
-
B.
Southern Region of British Railways
The Southern Region of British Railways was one of the post-nationalisation operating regions in the south of England, known for its dense commuter network and extensive electrified lines serving London and the surrounding areas.
-
C.
South Western Railway
South Western Railway is a major UK train operating company providing regional and long-distance passenger rail services across southwest London, Surrey, Hampshire, Dorset, Wiltshire, Devon, and surrounding areas.
-
D.
South Western Railway
South Western Railway is a zone of Indian Railways responsible for operating and managing rail services primarily across the state of Karnataka and parts of its neighboring regions.
-
E.
Southern (train operating company)
chosen
Southern is a British train operating company that runs commuter and regional rail services across parts of South London, Surrey, Sussex, and the South Coast of England.
- 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_69d80771749c81909a6d9197b9504872 |
completed | April 9, 2026, 8:09 p.m. |
| NER | Named-entity recognition | batch_69d98117209081908272021013df2222 |
completed | April 10, 2026, 11 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f6d608a2288190bf07023a5303f887 |
completed | May 3, 2026, 4:58 a.m. |
Created at: April 9, 2026, 9 p.m.