Triple
T8780902
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Coulsdon |
E208722
|
entity |
| Predicate | hasRailwayStation |
P918
|
FINISHED |
| Object | Coulsdon South railway station |
E433294
|
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: Coulsdon South railway station | Statement: [Coulsdon, hasRailwayStation, Coulsdon South railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Coulsdon South railway station Context triple: [Coulsdon, hasRailwayStation, Coulsdon South railway station]
-
A.
Coulsdon South railway station
chosen
Coulsdon South railway station is a commuter rail station in the London Borough of Croydon, serving the Coulsdon area on the Brighton Main Line with services towards central London and the south coast.
-
B.
South Croydon railway station
South Croydon railway station is a suburban rail station in the London Borough of Croydon that serves commuter services between central London and destinations in Surrey and beyond.
-
C.
Sanderstead railway station
Sanderstead railway station is a suburban rail station in the London Borough of Croydon, providing commuter services between central London and destinations in Surrey and Sussex.
-
D.
West Croydon station
West Croydon station is a major transport interchange in south London, serving National Rail, London Overground, and Tramlink services for the Croydon area.
-
E.
Carshalton railway station
Carshalton railway station is a suburban rail station in the London Borough of Sutton, providing local and commuter services on the Sutton and Mole Valley lines.
- 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_69ca835fbee88190bf625939bac48d7f |
completed | March 30, 2026, 2:06 p.m. |
| NER | Named-entity recognition | batch_69cc5f55b7b08190ab3e18cd634a144b |
completed | March 31, 2026, 11:57 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cf51df4a608190883a093dbd169976 |
completed | April 3, 2026, 5:36 a.m. |
Created at: March 30, 2026, 6:42 p.m.