Triple
T8726302
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chatham Main Line |
E207138
|
entity |
| Predicate | secondaryLondonConnection |
P24453
|
FINISHED |
| Object | London Blackfriars railway station |
E71034
|
NE FINISHED |
How this triple was built (3 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: London Blackfriars railway station | Statement: [Chatham Main Line, secondaryLondonConnection, London Blackfriars railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: London Blackfriars railway station Context triple: [Chatham Main Line, secondaryLondonConnection, London Blackfriars railway station]
-
A.
Southwark station
Southwark station is a London Underground station on the Jubilee line, serving the South Bank area near major cultural attractions.
-
B.
Blackfriars station
chosen
Blackfriars station is a central London railway and London Underground interchange on the north bank of the River Thames, serving both mainline and Tube services.
-
C.
London Bridge railway station
London Bridge railway station is a major central London rail and Underground hub, serving as one of the city’s oldest and busiest commuter interchanges on the south bank of the River Thames.
-
D.
London Victoria railway station
London Victoria railway station is one of London's busiest central railway termini and transport hubs, serving both mainline and Underground services as a key gateway to the south of England and Gatwick Airport.
-
E.
Cannon Street station
Cannon Street station is a central London railway terminus and London Underground station serving commuter routes in and out of the City of London.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: secondaryLondonConnection Context triple: [Chatham Main Line, secondaryLondonConnection, London Blackfriars railway station]
-
A.
secondaryLondonTerminal
chosen
Indicates that a location serves as a secondary terminal in London associated with a primary London terminal for a given service or route.
-
B.
primaryLondonTerminal
Indicates that a given station serves as the main London terminal for a particular rail service or route.
-
C.
servesCentralLondon
Indicates that something provides service or access specifically to the Central London area.
-
D.
secondaryHub
Indicates that an entity functions as a secondary or backup hub in relation to a primary hub within a network or system.
-
E.
secondMetropolitan
Indicates that one entity is the second metropolitan (e.g., second-ranking or second-designated metropolitan authority or see) in relation to another entity.
- F. None of above.
Provenance (4 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_69ca835811d8819081ea00fd2a2c9a1c |
completed | March 30, 2026, 2:06 p.m. |
| NER | Named-entity recognition | batch_69cc5d158b0481908249610458f97306 |
completed | March 31, 2026, 11:47 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d065b11f3c81909c787d365b242d57 |
completed | April 4, 2026, 1:13 a.m. |
| PD | Predicate disambiguation | batch_69cc457093188190959287a6458651c6 |
completed | March 31, 2026, 10:06 p.m. |
Created at: March 30, 2026, 6:36 p.m.