Triple
T4671418
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Southern Railway (UK) |
E102970
|
entity |
| Predicate | main hub |
P423
|
FINISHED |
| Object |
Holborn Viaduct station
Holborn Viaduct station was a former central London railway terminus that served as a key commuter hub, particularly for services running to and from southern England.
|
E518849
|
NE FINISHED |
How this triple was built (4 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: Holborn Viaduct station | Statement: [Southern Railway (UK), main hub, Holborn Viaduct station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Holborn Viaduct station Context triple: [Southern Railway (UK), main hub, Holborn Viaduct station]
-
A.
Holborn station
Holborn station is a central London Underground station on the Central and Piccadilly lines, located near major attractions such as the British Museum.
-
B.
Hampstead tube station
Hampstead tube station is a London Underground station on the Northern line, known for serving the Hampstead area of the London Borough of Camden and for having one of the deepest platforms on the network.
-
C.
Tottenham Court Road station
Tottenham Court Road station is a central London Underground station on the Central and Northern lines, located near Oxford Street and serving the West End.
-
D.
Ealing Broadway station
Ealing Broadway station is a major railway and London Underground interchange in west London, serving as a key hub for services between central London and the suburbs.
-
E.
Farringdon station
Farringdon station is a major central London railway, Underground, and Elizabeth line interchange known for its key role in connecting the City of London with wider suburban and national routes.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Holborn Viaduct station Triple: [Southern Railway (UK), main hub, Holborn Viaduct station]
Generated description
Holborn Viaduct station was a former central London railway terminus that served as a key commuter hub, particularly for services running to and from southern England.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Holborn Viaduct station Target entity description: Holborn Viaduct station was a former central London railway terminus that served as a key commuter hub, particularly for services running to and from southern England.
-
A.
Holborn station
Holborn station is a central London Underground station on the Central and Piccadilly lines, located near major attractions such as the British Museum.
-
B.
Hampstead tube station
Hampstead tube station is a London Underground station on the Northern line, known for serving the Hampstead area of the London Borough of Camden and for having one of the deepest platforms on the network.
-
C.
Tottenham Court Road station
Tottenham Court Road station is a central London Underground station on the Central and Northern lines, located near Oxford Street and serving the West End.
-
D.
Ealing Broadway station
Ealing Broadway station is a major railway and London Underground interchange in west London, serving as a key hub for services between central London and the suburbs.
-
E.
Farringdon station
Farringdon station is a major central London railway, Underground, and Elizabeth line interchange known for its key role in connecting the City of London with wider suburban and national routes.
- F. None of above. chosen
Provenance (5 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_69bd43d9cba4819086c1ab1c2d9d2133 |
completed | March 20, 2026, 12:55 p.m. |
| NER | Named-entity recognition | batch_69bd6c3d1cb88190a42919dcbfe2568c |
completed | March 20, 2026, 3:48 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bf3a7def848190836605d706aa7599 |
completed | March 22, 2026, 12:40 a.m. |
| NEDg | Description generation | batch_69bf3c38bbec8190a7722de71b9f7ce0 |
completed | March 22, 2026, 12:47 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69bf3c92220c819095e4e90f62086618 |
completed | March 22, 2026, 12:49 a.m. |
Created at: March 20, 2026, 1:15 p.m.