Triple
T2907513
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Waterloo & City line |
E63600
|
entity |
| Predicate | interchangeAtWaterloo |
P15892
|
FINISHED |
| Object | Bakerloo line |
E60074
|
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: Bakerloo line | Statement: [Waterloo & City line, interchangeAtWaterloo, Bakerloo line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Bakerloo line Context triple: [Waterloo & City line, interchangeAtWaterloo, Bakerloo line]
-
A.
Bakerloo line
chosen
The Bakerloo line is a deep-level London Underground railway line running between Harrow & Wealdstone in northwest London and Elephant & Castle in south London, known for serving key central locations such as Baker Street, Oxford Circus, and Waterloo.
-
B.
Hammersmith & City line
The Hammersmith & City line is a London Underground service running across west and central London, linking Hammersmith to Barking via key hubs such as Paddington, King's Cross St Pancras, and Liverpool Street.
-
C.
Piccadilly line
The Piccadilly line is a major deep-level London Underground route running from the north and west suburbs through central London, serving key destinations including Heathrow Airport.
-
D.
Jubilee line
The Jubilee line is a major London Underground line running across the city from northwest to east, serving key financial and commercial hubs including Canary Wharf.
-
E.
Northern line
The Northern line is a major London Underground route running north–south across the city, serving key central and suburban areas.
- 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: interchangeAtWaterloo Context triple: [Waterloo & City line, interchangeAtWaterloo, Bakerloo line]
-
A.
interchangeStation
chosen
Indicates a station where passengers can transfer between different routes, lines, or modes of transportation.
-
B.
terminusCanada
Indicates that something serves as an endpoint, destination, or terminal location within or specifically for Canada.
-
C.
distanceFromWaterloo
Indicates the spatial distance between a given location and Waterloo.
-
D.
NorthPoleTransitDate
Indicates the date on which an entity passes through or reaches the North Pole during its transit or trajectory.
-
E.
hasBusInterchange
Indicates that one transport-related entity includes, contains, or is associated with a bus interchange facility.
- 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_69ab4c44ab448190b9411324e8a1fc1d |
completed | March 6, 2026, 9:51 p.m. |
| NER | Named-entity recognition | batch_69abe0d0628c81909680af2f0db2ecae |
completed | March 7, 2026, 8:24 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b4fadc46e8819095ebcb23e1da9947 |
completed | March 14, 2026, 6:06 a.m. |
| PD | Predicate disambiguation | batch_69abdd19bac881908f047d616aca8438 |
completed | March 7, 2026, 8:08 a.m. |
Created at: March 6, 2026, 10:11 p.m.