Triple
T22451804
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Barking bus station |
E555008
|
entity |
| Predicate | hasAdjacentRailService |
P148252
|
FINISHED |
| Object | London Underground District line at Barking |
—
|
NE NERFINISHED |
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 Underground District line at Barking | Statement: [Barking bus station, hasAdjacentRailService, London Underground District line at Barking]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: London Underground District line at Barking Context triple: [Barking bus station, hasAdjacentRailService, London Underground District line at Barking]
-
A.
London Underground District line
The London Underground District line is a major Tube line in London running from the western suburbs through central London to the east, serving numerous key residential and commercial areas.
-
B.
District line (London Underground)
chosen
The District line is a major London Underground line running across the city from east to west, serving numerous suburban areas and key central London destinations.
-
C.
London Underground Metropolitan line
The London Underground Metropolitan line is one of the network’s oldest and longest lines, running from central London into the north-west suburbs and beyond into Buckinghamshire.
-
D.
London Underground Hammersmith & City line at Farringdon
The London Underground Hammersmith & City line at Farringdon is a central London Tube service calling at Farringdon station, an important interchange on the sub-surface network.
-
E.
Ealing Broadway branch of the District line
The Ealing Broadway branch of the District line is a western suburban section of London’s Underground network that runs between central London and Ealing Broadway, serving key stations in west 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: hasAdjacentRailService Context triple: [Barking bus station, hasAdjacentRailService, London Underground District line at Barking]
-
A.
hasRailRoute
Indicates that there exists a rail-based transportation route or connection between the related entities.
-
B.
isRailServiceOf
Indicates that a particular rail service operates for, belongs to, or is provided by a specified entity (such as a route, operator, or network).
-
C.
hasAdjacentStationOnNorthCentralService
Indicates that one station is directly next to another station along the North Central Service line.
-
D.
hasNightTrainService
Indicates that a transportation route or station is served by trains that operate during nighttime hours.
-
E.
railwayTypeServed
Indicates the type of railway system or service that a given entity (such as a station, line, or facility) is designed to serve or accommodate.
- F. None of above. chosen
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_69e11e5113208190ab58c6b595f9d1d0 |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f15b4c63e88190aeedc326599edd18 |
completed | April 29, 2026, 1:13 a.m. |
| PD | Predicate disambiguation | batch_69e898ad961c819098fd1e46129bddcc |
completed | April 22, 2026, 9:45 a.m. |
| PDg | Predicate description generation | batch_69e8aa39e3388190b659d59948ebf3e6 |
completed | April 22, 2026, 11 a.m. |
Created at: April 16, 2026, 8:48 p.m.